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Integrated Monitoring in Bird Conservation Regions (IMBCR)
2020 Summary Report for
Utah Bureau of Land Management and
Utah Division of Wildlife Resources
Transect near Grand Staircase Escalante National Monument. Photo by Adam Bradley.
November 1, 2020
Stephanie Coates, Jeremy Halka, Jessica Pollock, and Jay Carlisle
Intermountain Bird Observatory, Boise State University
stephaniecoates@boisestate.edu
(Boise State University Project Code 2000000414)
1
SUMMARY
Between 5 May and 19 June 2020, the Intermountain Bird Observatory (IBO) staff conducted
avian point count surveys throughout Utah on Bureau of Land Management (BLM) lands as a
part of the Integrated Monitoring in Bird Conservation Regions (IMBCR) program coordinated
by Bird Conservancy of the Rockies and partners. We surveyed 36 transects overall: 7 each in
the Richfield and St. George Field Offices, 6 in the Cedar City Field Office, 5 in the Price Field
Office, 4 each in the Grand Staircase-Escalante National Monument (GSENM)/Kanab-Escalante
Planning Area (KEPA) and the Monticello Field Office, and 3 in the Kanab Field Office (Figure
1). Additional transects were completed on Utah BLM lands (Fillmore, Salt Lake, Moab, and
Vernal Field Offices) by Bird Conservancy of the Rockies, but they are not included in this
report. For that report, contact: matthew.mclaren@birdconservancy.org.
The purpose of this document is to provide collaborating groups with an overview of completed
work and birds recorded. None of the data in this report are considered final or published. During
the winter of 2020−21, IBO will support Bird Conservancy of the Rockies and other partners in
preparing a report based on 2020 data that will include density and occupancy estimates for
species throughout the range of the IMBCR program. The final report containing this
information will be made available in 2021. Meanwhile, see McLaren et al. (2020a) for results
from last year: https://birdconservancy.org/wp-content/uploads/2020/03/2019-IMBCR-Report-
Final-3-27-2020.pdf
To produce estimates on density and occupancy, and to explore avian species counts by strata or
area of interest, please visit the Rocky Mountain Avian Data Center (RMADC):
http://rmbo.org/v3/avian/Home.aspx. A guide on how to use the RMADC is found here:
http://rmbo.org/v3/avian/ExploretheData/HowToGuide.aspx. To request raw data, contact:
matthew.mclaren@birdconservancy.org
SURVEY EFFORT
The IMBCR sampling technique is a random selection of survey grids (transects) within Bird
Conservation Region (BCR) strata. Transects are ranked by a priority order that is based on
maintaining a spatially-balanced design. If a field office encompasses multiple strata (i.e.,
contains areas in more than one BCR), we select a ratio of transects based on the total number of
available grids (proportional to land area and ownership) in each stratum. We stratified transects
on Utah BLM lands as follows (Figures 1−6):
• Cedar City Field Office (CC; Figure 2) − BCR 9: 4 transects and BCR 16: 2 transects
• Grand Staircase-Escalante National Monument/Kanab-Escalante Planning Area (GS;
Figure 3) − BCR 16: 4 transects
• Kanab Field Office (KA; Figure 3) − BCR 16: 3 transects
• Monticello Field Office (MN; Figure 4) − BCR 16: 4 transects
• Price Field Office (PR; Figure 5) − BCR 16: 5 transects
• Richfield Field Office (RI; Figure 5) − BCR 9: 3 transects and BCR 16: 4 transects
• St. George Field Office (SG; Figure 6) − BCR 9: 2 transects, BCR 16: 3 transects, and
BCR 33: 2 transects
2
PROTOCOL
Each transect is a 1-km2 grid comprised of 16 points, placed 4 x 4, 250 m apart. Technicians aim
to complete 16 points if possible, but terrain, weather, and other factors often prevent completion
of all points within the morning survey window. Thus, we consider a transect complete if
technicians survey at least 6 points, or if they survey at least 4 points if all 16 points are on
private land. If a transect is deemed inaccessible, we drop it and replace it with the next priority-
ranked survey. Due to unsafe terrain, difficult access, or lack of permission to access private
land, 15 transects met these replacement criteria in 2020 (Table 1). We give each transect
shorthand names for quick reference (e.g., UT-BCR16-SG3 is shorthand for Utah; Bird
Conservation Region 16; St. George Field Office; priority transect number 3).
Table 1. Summary of 2020 replaced transects.
Inaccessible
Terrain/Remoteness
Impassible Roads
Private Land with
No Permission
UT-BCR16-GS2 & GS6
UT-BCR16-GS4
UT-BCR9-RI3
UT-BCR16-KA4
UT-BCR16-PR5
UT-BCR16-KA2
UT-BCR16-MN4 & MN8
UT-BCR16-RI5
UT-BCR16-PR3, PR6 & PR7
UT-BCR16-SG4
UT-BCR16-SG5
IBO technicians follow Bird Conservancy of the Rockies IMBCR survey protocol (McLaren et
al. 2020b) to conduct point counts. We begin transects up to 30 minutes before sunrise – as soon
as there is sufficient light – and surveys end no longer than 5 hours after sunrise, or sooner if
there is a significant decrease in bird activity. Each point count consists of a 6-min survey where
observers record the species, sex, horizontal distance between the observer and bird (estimated
with laser rangefinder), type of detection (e.g., song, call, visual, drum), and minute interval of
detection for every bird detected. In cases where we cannot identify an individual to species with
certainty, we use “unknown” categories (e.g., unknown swallow). If we detect a pair or flock of
the same species in the same location within a single minute interval, we consider them a
“cluster” rather than independent observations to align with the assumptions of distance
sampling. Upon arriving to a survey point, we record vegetation data within a 50-m radius
including: primary habitat type; percent cover/relative abundance and mean height of overstory
and understory species; groundcover characteristics, and grass/forb mean height (McLaren et al.
2020b). Observers record the time, ambient air temperature, cloud cover or precipitation, and
wind speed at the start and end of each transect.
It is important to note that because points are 250 m apart, it is likely that some birds, especially
larger, louder, and more mobile species, may be detected from 2 or more survey points within a
grid. Thus, the raw totals in this report are likely an overestimate of the actual number of
individuals present. For example, 30 Pinyon Jays on transect UT-BCR9-CC2, does not
necessarily mean 30 different individuals were detected, but rather the species was detected a
total of 30 times (i.e., individuals singing at high volumes could have been detected on multiple
survey points) throughout the grid. Multiple detections of the same individual are accounted for
in, and will not inflate, the density and occupancy estimates generated in the annual report and
online. Flyover birds not in their typical habitat (e.g., a Canada Goose detected in desert habitat),
juvenile birds, and birds detected incidentally between formal survey points are also included in
this report, but are not included in the annual report analyses because the objective is to estimate
the density and occupancy of adult, breeding birds.
3
Figure 1. 2020 IMBCR survey locations on Utah BLM lands (Cedar City, Grand Staircase-
Escalante National Monument/Kanab-Escalante Planning Area, Kanab, Monticello, Price,
Richfield, and St. George Field Offices).
4
Figure 2. 2020 IMBCR survey locations in the Cedar City Field Office. For ease of display,
transect names have been shortened from their full descriptors (e.g., UT-BCR9-CC1 is displayed
as “9-CC1”).
5
Figure 3. 2020 IMBCR survey locations in the Kanab Field Office and Grand Staircase-
Escalante National Monument/Kanab-Escalante Planning Area. For ease of display, transect
names have been shortened from their full descriptors (e.g., UT-BCR16-KA1 is displayed as
“16-KA1”).
6
Figure 4. 2020 IMBCR survey locations in the Monticello Field Office. For ease of display,
transect names have been shortened from their full descriptors (e.g., UT-BCR16-MN1 is
displayed as “16-MN1”).
7
Figure 5. 2020 IMBCR survey locations in the Price and Richfield Field Offices. For ease of
display, transect names have been shortened from their full descriptors (e.g., UT-BCR9-RI1 is
displayed as “9-RI1”).
8
Figure 6. 2020 IMBCR survey locations in the St. George Field Office. For ease of display,
transect names have been shortened from their full descriptors (e.g., UT-BCR16-SG1 is
displayed as “16-SG1”).
9
RESULTS
Across all 36 IMBCR transects on BLM lands in Utah, we tallied 3,704 individual detections
representing 99 bird species during surveys in 2020 (Table 2). We detected one BLM Sensitive
Species, a Ferruginous Hawk on UT-BCR16-GS5. The 5 most frequently detected species on all
surveys were Black-throated Sparrow (254), Horned Lark (201), Common Raven (200), Western
Meadowlark (197), and Black-throated Gray Warbler (178). Trends in the number of detections
were related to survey effort for many common species (Figure 7), while density estimates
produced by the RMADC revealed a mixture of trends for selected species (e.g. a 147.5%
decrease for Bewick’s Wren density and a 51.2% increase for Rock Wren density) from 2017 to
2019 (Figure 8). Density estimates for 2020 will be available in 2021.
In the Cedar City Field Office (CC), we tallied 747 individual detections representing 54 bird
species on 6 transects (Table 3). Horned Lark (130), Western Meadowlark (96), Common Raven
(76), Brewer’s Sparrow (54), and Black-throated Gray Warbler (53) were the 5 most frequently
detected species on these transects.
In the GSENM/KEPA (GS), we tallied 611 individual detections representing 52 bird species on
4 transects (Table 4). Pinyon Jay (80), Black-throated Gray Warbler (67), Blue-gray Gnatcatcher
(45), Spotted Towhee (38), and Bewick’s Wren (31) were the 5 most frequently detected species
on these transects. The high number of Pinyon Jays resulted from a colony detected at multiple
points on the UT-BCR16-GS3 transect. Notes from the transect include that the large group was
feeding different broods and included recently fledged juveniles.
In the Kanab Field Office (KA), we tallied 341 individual detections representing 44 bird
species on 3 transects (Table 5). Black-throated Sparrow (53), Northern Mockingbird (36),
Pinyon Jay (23), Brewer’s Sparrow (19), and Gray Vireo (16) were the 5 most frequently
detected species on these transects.
In the Monticello Field Office (MN), we tallied 229 individual detections representing 26 bird
species on 4 transects (Table 6). Ash-throated Flycatcher (39), Gray Vireo (23), Mourning Dove
(17), Black-throated Sparrow (16), Gray Flycatcher (16), and House Finch (16) were the 6 most
frequently detected species on these transects.
In the Price Field Office (PR), we tallied 389 individual detections representing 48 bird species
on 5 transects (Table 7). Horned Lark (45), Rock Wren (41), Lark Sparrow (39), Black-throated
Sparrow (33), and Green-tailed Towhee (20) were the 5 most frequently detected species on
these transects.
In the Richfield Field Office (RI), we tallied 582 individual detections representing 51 bird
species on 7 transects (Table 8). Rock Wren (71), Black-throated Sparrow (43), Western
Meadowlark (43), Common Raven (38), and House Finch (38) were the 5 most frequently
detected species on these transects.
In the St. George Field Office (SG), we tallied 805 individual detections representing 66 bird
species on 7 transects (Table 9). Black-throated Sparrow (100), Black-chinned Sparrow (49),
Spotted Towhee (47), Ash-throated Flycatcher (37), and Woodhouse’s Scrub-Jay (35) were the 5
most frequently detected species on these transects.
10
Figure 7. Number of detections for selected common species and species of interest recorded on
all BLM lands in Utah during IMBCR surveys for the years 2016 through 2020.
Figure 8. Rocky Mountain Avian Data Center density estimates for selected species on all BLM
lands in Utah for the years 2017 through 2019. Estimates for 2020 will be available in Spring
2021.
0
200
400
600
800
1000
1200
1400
0
200
400
600
800
1000
1200
12345
Points Surveyed
Detections
Year
# Points Surveyed
Bewick's Wren
Black-throated Sparrow
Pinyon Jay
Rock Wren
Western Meadowlark
5.42
3.61
2.19
18.1
12.3
14.15
0.68
0.45
1.07
1.83 2.77
3.75
3.49
4.39
3.55
0
2
4
6
8
10
12
14
16
18
20
2017 2018 2019
Estimated Density (birds/km2)
Year
Bewick's Wren
Black-throated Sparrow
Pinyon Jay
Rock Wren
Western Meadowlark
2016 2017 2018 2019 2020
11
Table 2. Detections across each UT BLM field office and Grand Staircase-Escalante National Monument/Kanab-Escalante Planning Area in
2020. For ease of display, areas are listed as their strata codes (e.g., Cedar City Field Office is displayed as “CC”). We detected one BLM
sensitive species (denoted with “*”) in 2020: a Ferruginous Hawk on UT-BCR16-GS5 (https://www.blm.gov/programs/fish-and-
wildlife/threatened-and-endangered/state-te-data/utah/).
Strata Code
CC
GS
KA
MN
PR
RI
SG
Total #
detections per
species
Average #
detections per
transect
Total # points surveyed
80
58
46
55
67
84
95
American Goldfinch
2
2
0.29
American Kestrel
1
1
0.14
American Robin
3
5
1
2
11
1.57
Ash-throated Flycatcher
12
16
11
39
8
37
123
17.57
Bewick's Wren
9
31
3
12
9
20
84
12.00
Black-billed Magpie
8
3
23
34
4.86
Black-capped Chickadee
1
1
0.14
Black-chinned Hummingbird
1
1
1
6
9
1.29
Black-chinned Sparrow
1
49
50
7.14
Black-headed Grosbeak
5
1
1
4
5
16
2.29
Black-throated Gray Warbler
53
67
4
12
23
19
178
25.43
Black-throated Sparrow
1
8
53
16
33
43
100
254
36.29
Blue-gray Gnatcatcher
11
45
9
13
8
30
116
16.57
Brewer's Blackbird
2
6
8
1.14
Brewer's Sparrow
54
25
19
9
9
5
121
17.29
Broad-tailed Hummingbird
2
8
5
2
1
18
2.57
Brown-headed Cowbird
2
2
4
2
5
1
16
2.29
Bullock's Oriole
1
1
5
7
1.00
Bushtit
7
1
5
2
2
17
2.43
Cactus Wren
5
5
0.71
Canada Goose
4
4
0.57
Canyon Wren
3
2
5
0.71
Cassin's Finch
2
3
2
11
18
2.57
12
Strata Code
CC
GS
KA
MN
PR
RI
SG
Total #
detections per
species
Average #
detections per
transect
Total # points surveyed
80
58
46
55
67
84
95
Cassin's Kingbird
1
1
0.14
Chipping Sparrow
13
13
13
1
2
7
7
56
8.00
Chukar
1
3
1
5
0.71
Clark's Nutcracker
1
1
0.14
Common Nighthawk
1
1
2
4
0.57
Common Poorwill
1
1
0.14
Common Raven
76
29
13
5
11
38
28
200
28.57
Cordilleran Flycatcher
1
1
0.14
Costa's Hummingbird
2
2
0.29
Crissal Thrasher
1
1
0.14
Dark-eyed Junco
1
2
2
1
3
1
10
1.43
Downy Woodpecker
4
2
6
0.86
Dusky Flycatcher
4
8
7
2
14
4
8
47
6.71
Eurasian Collared-Dove
2
2
0.29
Ferruginous Hawk*
1
1
0.14
Gambel's Quail
1
2
3
0.43
Gray Flycatcher
18
26
16
2
62
8.86
Gray Vireo
15
10
16
23
9
26
99
14.14
Great Blue Heron
1
1
0.14
Green-tailed Towhee
2
9
20
1
32
4.57
Hairy Woodpecker
1
1
0.14
Hermit Thrush
3
13
1
17
2.43
Horned Lark
130
45
13
13
201
28.71
House Finch
2
7
1
16
4
38
34
102
14.57
House Wren
2
1
1
5
1
3
13
1.86
Juniper Titmouse
19
13
5
15
7
59
8.43
Lark Sparrow
13
5
9
39
37
2
105
15.00
13
Strata Code
CC
GS
KA
MN
PR
RI
SG
Total #
detections per
species
Average #
detections per
transect
Total # points surveyed
80
58
46
55
67
84
95
Lazuli Bunting
27
27
3.86
Lesser Goldfinch
1
5
6
0.86
MacGillivray's Warbler
2
2
0.29
Mountain Bluebird
5
1
5
2
3
1
17
2.43
Mountain Chickadee
24
2
1
1
28
4.00
Mourning Dove
9
3
10
17
2
17
34
92
13.14
Northern Flicker
4
1
2
1
4
12
1.71
Northern Mockingbird
2
3
36
1
3
22
67
9.57
Northern Rough-winged Swallow
2
2
0.29
Olive-sided Flycatcher
7
7
1.00
Orange-crowned Warbler
6
5
11
1.57
Peregrine Falcon
1
1
0.14
Pine Siskin
2
1
4
1
8
1.14
Pinyon Jay
5
80
23
1
22
131
18.71
Plumbeous Vireo
3
22
2
13
12
52
7.43
Red Crossbill
14
14
2.00
Red-breasted Nuthatch
2
1
5
8
1.14
Red-tailed Hawk
2
2
1
5
0.71
Red-winged Blackbird
1
1
0.14
Rock Wren
7
2
8
41
71
21
150
21.43
Ruby-crowned Kinglet
4
4
0.57
Sage Thrasher
2
2
0.29
Sagebrush Sparrow
18
8
15
18
59
8.43
Say's Phoebe
1
2
1
5
16
9
34
4.86
Scott's Oriole
1
12
13
1.86
Song Sparrow
3
1
4
0.57
Spotted Towhee
19
38
7
3
4
47
118
16.86
14
Strata Code
CC
GS
KA
MN
PR
RI
SG
Total #
detections per
species
Average #
detections per
transect
Total # points surveyed
80
58
46
55
67
84
95
Swainson's Hawk
1
5
6
0.86
Townsend's Solitaire
3
3
0.43
Turkey Vulture
7
7
1.00
Unknown Accipiter
1
1
0.14
Unknown Bird
22
5
9
7
4
24
71
10.14
Unknown Blackbird
1
1
0.14
Unknown Empidonax
4
1
5
0.71
Unknown Flycatcher
1
1
0.14
Unknown Hummingbird
2
1
5
8
1.14
Unknown Jay
1
1
0.14
Unknown Sparrow
3
4
7
1.00
Unknown Swallow
1
1
0.14
Unknown Vireo
2
2
0.29
Unknown Warbler
1
2
3
0.43
Unknown Woodpecker
1
1
2
0.29
Vesper Sparrow
23
2
2
6
33
4.71
Violet-green Swallow
1
2
3
8
3
15
1
33
4.71
Virginia's Warbler
6
11
14
2
33
4.71
Warbling Vireo
2
4
4
13
6
29
4.14
Western Bluebird
6
3
1
10
1.43
Western Kingbird
1
1
2
4
0.57
Western Meadowlark
96
10
17
43
31
197
28.14
Western Tanager
1
6
15
13
1
11
47
6.71
Western Wood-Pewee
5
1
1
7
1.00
White-breasted Nuthatch
8
5
2
5
20
2.86
White-crowned Sparrow
4
1
5
0.71
White-throated Swift
2
30
3
2
1
38
5.43
15
Strata Code
CC
GS
KA
MN
PR
RI
SG
Total #
detections per
species
Average #
detections per
transect
Total # points surveyed
80
58
46
55
67
84
95
Wild Turkey
1
1
0.14
Wilson's Warbler
7
7
1.00
Woodhouse's Scrub-Jay
9
19
7
3
3
35
76
10.86
Yellow Warbler
1
1
7
9
1.29
Yellow-breasted Chat
2
3
1
6
0.86
Yellow-headed Blackbird
1
1
0.14
Yellow-rumped Warbler
3
1
4
1
14
23
3.29
Total # detections
747
611
341
229
389
582
805
3,704
Total # species
54
52
44
26
48
51
66
99
Average # detections per transect
9.34
10.53
7.41
4.16
5.81
6.93
8.47
7.64
16
Table 3. Detections for each of the Cedar City Field Office (CC) transects in 2020. For ease of display, transect names have been shortened from their
full descriptors (e.g., UT-BCR9-CC1 is displayed as “CC1”).
BCR 9
BCR 16
Transect Name
CC1
CC2
CC3
CC4
CC1
CC2
Total #
detections
per species
Average #
detections
per transect
# points visited per transect
16
16
12
16
10
10
American Robin
3
3
0.50
Ash-throated Flycatcher
4
2
4
2
12
2.00
Bewick's Wren
1
7
1
9
1.50
Black-billed Magpie
8
8
1.33
Black-chinned Sparrow
1
1
0.17
Black-throated Gray Warbler
36
8
9
53
8.83
Black-throated Sparrow
1
1
0.17
Blue-gray Gnatcatcher
1
1
2
7
11
1.83
Brewer's Sparrow
17
2
35
54
9.00
Broad-tailed Hummingbird
1
1
2
0.33
Brown-headed Cowbird
2
2
0.33
Bullock's Oriole
1
1
0.17
Bushtit
7
7
1.17
Cassin's Finch
1
1
2
0.33
Chipping Sparrow
3
7
3
13
2.17
Common Nighthawk
1
1
0.17
Common Raven
37
6
3
23
4
3
76
12.67
Dark-eyed Junco
1
1
0.17
Dusky Flycatcher
3
1
4
0.67
Gray Flycatcher
1
2
10
5
18
3.00
Gray Vireo
11
4
15
2.50
Green-tailed Towhee
1
1
2
0.33
Hermit Thrush
2
1
3
0.50
Horned Lark
54
75
1
130
21.67
17
BCR 9
BCR 16
Transect Name
CC1
CC2
CC3
CC4
CC1
CC2
Total #
detections
per species
Average #
detections
per transect
# points visited per transect
16
16
12
16
10
10
House Finch
2
2
0.33
Juniper Titmouse
9
6
4
19
3.17
Lark Sparrow
3
4
6
13
2.17
Mountain Bluebird
3
2
5
0.83
Mountain Chickadee
24
24
4.00
Mourning Dove
1
6
2
9
1.50
Northern Flicker
3
1
4
0.67
Northern Mockingbird
2
2
0.33
Pine Siskin
2
2
0.33
Pinyon Jay
2
3
5
0.83
Plumbeous Vireo
1
2
3
0.50
Red-breasted Nuthatch
2
2
0.33
Red-tailed Hawk
1
1
2
0.33
Sagebrush Sparrow
4
14
18
3.00
Say's Phoebe
1
1
0.17
Spotted Towhee
8
6
5
19
3.17
Swainson's Hawk
1
1
0.17
Unknown Bird
3
2
2
10
4
1
22
3.67
Unknown Blackbird
1
1
0.17
Unknown Flycatcher
1
1
0.17
Unknown Sparrow
3
3
0.50
Unknown Swallow
1
1
0.17
Vesper Sparrow
23
23
3.83
Violet-green Swallow
1
1
0.17
Virginia's Warbler
5
1
6
1.00
Warbling Vireo
2
2
0.33
Western Bluebird
6
6
1.00
18
BCR 9
BCR 16
Transect Name
CC1
CC2
CC3
CC4
CC1
CC2
Total #
detections
per species
Average #
detections
per transect
# points visited per transect
16
16
12
16
10
10
Western Kingbird
1
1
0.17
Western Meadowlark
21
42
21
12
96
16.00
Western Tanager
1
1
0.17
White-breasted Nuthatch
8
8
1.33
White-throated Swift
1
1
2
0.33
Woodhouse's Scrub-Jay
1
4
1
3
9
1.50
Yellow-headed Blackbird
1
1
0.17
Yellow-rumped Warbler
3
3
0.50
Total # detections per transect
138
149
132
152
88
88
747
Total # species per transect
6
9
20
21
22
28
54
Average # detections per point
8.63
9.31
11.00
9.50
8.80
8.80
9.34
19
Table 4. Detections for each of the Grand Staircase-Escalante National Monument/Kanab-Escalante Planning Area (GS) transects in 2020. For ease of
display, transect names have been shortened from their full descriptors (e.g., UT-BCR16-GS1 is displayed as “GS1”).
BCR 16
Transect Name
GS1
GS3
GS5
GS7
Total #
detections
per species
Average #
detections
per transect
# points visited per transect
16
16
10
16
American Kestrel
1
1
0.25
Ash-throated Flycatcher
6
3
7
16
4.00
Bewick's Wren
11
8
1
11
31
7.75
Black-chinned Hummingbird
1
1
0.25
Black-headed Grosbeak
5
5
1.25
Black-throated Gray Warbler
15
12
21
19
67
16.75
Black-throated Sparrow
3
5
8
2.00
Blue-gray Gnatcatcher
23
10
5
7
45
11.25
Brewer's Sparrow
19
6
25
6.25
Broad-tailed Hummingbird
2
6
8
2.00
Brown-headed Cowbird
1
1
2
0.50
Bushtit
1
1
0.25
Chipping Sparrow
4
5
3
1
13
3.25
Chukar
1
1
0.25
Common Raven
17
7
3
2
29
7.25
Dark-eyed Junco
2
2
0.50
Downy Woodpecker
1
3
4
1.00
Dusky Flycatcher
2
1
5
8
2.00
Ferruginous Hawk*
1
1
0.25
Gambel's Quail
1
1
0.25
Gray Flycatcher
11
15
26
6.50
Gray Vireo
9
1
10
2.50
House Finch
7
7
1.75
House Wren
2
2
0.50
20
BCR 16
Transect Name
GS1
GS3
GS5
GS7
Total #
detections
per species
Average #
detections
per transect
# points visited per transect
16
16
10
16
Juniper Titmouse
2
3
5
3
13
3.25
Lark Sparrow
5
5
1.25
Lesser Goldfinch
1
1
0.25
Mountain Bluebird
1
1
0.25
Mountain Chickadee
2
2
0.50
Mourning Dove
1
1
1
3
0.75
Northern Flicker
1
1
0.25
Northern Mockingbird
3
3
0.75
Northern Rough-winged Swallow
2
2
0.50
Pine Siskin
1
1
0.25
Pinyon Jay
1
79
80
20.00
Plumbeous Vireo
5
10
7
22
5.50
Red-breasted Nuthatch
1
1
0.25
Rock Wren
7
7
1.75
Sagebrush Sparrow
8
8
2.00
Say's Phoebe
1
1
2
0.50
Spotted Towhee
19
3
8
8
38
9.50
Unknown Bird
1
2
2
5
1.25
Unknown Hummingbird
1
1
2
0.50
Unknown Woodpecker
1
1
0.25
Violet-green Swallow
1
1
2
0.50
Virginia's Warbler
11
11
2.75
Warbling Vireo
4
4
1.00
Western Bluebird
1
2
3
0.75
Western Meadowlark
4
6
10
2.50
Western Tanager
1
2
1
2
6
1.50
21
BCR 16
Transect Name
GS1
GS3
GS5
GS7
Total #
detections
per species
Average #
detections
per transect
# points visited per transect
16
16
10
16
Western Wood-Pewee
3
2
5
1.25
White-breasted Nuthatch
5
5
1.25
White-crowned Sparrow
4
4
1.00
White-throated Swift
29
1
30
7.50
Woodhouse's Scrub-Jay
11
3
5
19
4.75
Total # detections per transect
163
233
110
105
611
Total # species per transect
24
31
27
18
52
Average # detections per point
10.19
14.56
11.00
6.56
10.53
22
Table 5. Detections for each of the Kanab Field Office (KA) transects in 2020. For ease of display, transect names have been shortened from their full
descriptors (e.g., UT-BCR16-KA1 is displayed as “KA1”).
BCR 16
Transect Name
KA1
KA3
KA5
Total #
detections
per species
Average #
detections
per transect
# points visited per transect
15
16
15
American Robin
5
5
1.67
Ash-throated Flycatcher
5
1
5
11
3.67
Bewick's Wren
1
2
3
1.00
Black-chinned Hummingbird
1
1
0.33
Black-headed Grosbeak
1
1
0.33
Black-throated Gray Warbler
4
4
1.33
Black-throated Sparrow
27
26
53
17.67
Blue-gray Gnatcatcher
3
4
2
9
3.00
Brewer's Sparrow
19
19
6.33
Broad-tailed Hummingbird
5
5
1.67
Brown-headed Cowbird
4
4
1.33
Bushtit
5
5
1.67
Cassin's Finch
3
3
1.00
Chipping Sparrow
2
10
1
13
4.33
Common Raven
6
7
13
4.33
Dark-eyed Junco
2
2
0.67
Dusky Flycatcher
7
7
2.33
Gray Vireo
10
6
16
5.33
Green-tailed Towhee
9
9
3.00
House Finch
1
1
0.33
House Wren
1
1
0.33
Lark Sparrow
9
9
3.00
Mountain Bluebird
5
5
1.67
Mountain Chickadee
1
1
0.33
23
BCR 16
Transect Name
KA1
KA3
KA5
Total #
detections
per species
Average #
detections
per transect
# points visited per transect
15
16
15
Mourning Dove
1
7
2
10
3.33
Northern Flicker
2
2
0.67
Northern Mockingbird
2
34
36
12.00
Pinyon Jay
10
4
9
23
7.67
Rock Wren
2
2
0.67
Sagebrush Sparrow
15
15
5.00
Say's Phoebe
1
1
0.33
Scott's Oriole
1
1
0.33
Song Sparrow
3
3
1.00
Spotted Towhee
7
7
2.33
Unknown Jay
1
1
0.33
Vesper Sparrow
2
2
0.67
Violet-green Swallow
2
1
3
1.00
Warbling Vireo
2
2
4
1.33
Western Tanager
11
3
1
15
5.00
Western Wood-Pewee
1
1
0.33
White-breasted Nuthatch
2
2
0.67
White-throated Swift
3
3
1.00
Woodhouse's Scrub-Jay
7
7
2.33
Yellow-breasted Chat
2
2
0.67
Yellow-rumped Warbler
1
1
0.33
Total # detections per transect
70
137
134
341
Total # species per transect
14
32
17
44
Average # detections per point
4.67
8.56
8.93
7.41
24
Table 6. Detections for each of the Monticello Field Office (MN) transects in 2020. For ease of display, transect names have been shortened from their
full descriptors (e.g., UT-BCR16-MN1 is displayed as “MN1”).
BCR 16
Transect Name
MN1
MN2
MN3
MN5
Total #
detections
per species
Average #
detections
per transect
# points visited per transect
14
16
12
13
Ash-throated Flycatcher
15
10
5
9
39
9.75
Bewick's Wren
3
4
5
12
3.00
Black-headed Grosbeak
1
1
0.25
Black-throated Gray Warbler
3
2
7
12
3.00
Black-throated Sparrow
2
14
16
4.00
Blue-gray Gnatcatcher
2
9
2
13
3.25
Brown-headed Cowbird
2
2
0.50
Bushtit
2
2
0.50
Canyon Wren
2
1
3
0.75
Cassin's Kingbird
1
1
0.25
Chipping Sparrow
1
1
0.25
Common Raven
1
2
2
5
1.25
Dusky Flycatcher
2
2
0.50
Gray Flycatcher
8
5
3
16
4.00
Gray Vireo
5
5
13
23
5.75
House Finch
2
5
8
1
16
4.00
House Wren
1
1
0.25
Juniper Titmouse
5
5
1.25
Mourning Dove
8
9
17
4.25
Pinyon Jay
1
1
0.25
Rock Wren
4
3
1
8
2.00
Say's Phoebe
1
4
5
1.25
Spotted Towhee
2
1
3
0.75
25
BCR 16
Transect Name
MN1
MN2
MN3
MN5
Total #
detections
per species
Average #
detections
per transect
# points visited per transect
14
16
12
13
Unknown Bird
6
2
1
9
2.25
Unknown Empidonax
4
4
1.00
Violet-green Swallow
2
5
1
8
2.00
Woodhouse's Scrub-Jay
1
1
1
3
0.75
Yellow Warbler
1
1
0.25
Total # detections per transect
65
66
34
64
229
Total # species per transect
15
17
6
17
26
Average # detections per point
4.64
4.13
2.83
4.92
4.16
26
Table 7. Detections for each of the Price Field Office (PR) transects in 2020. For ease of display, transect names have been shortened from their full
descriptors (e.g., UT-BCR16-PR1 is displayed as “PR1”).
BCR 16
Transect Name
PR1
PR2
PR4
PR8
PR10
Total #
detections
per species
Average #
detections
per transect
# points visited per transect
14
16
10
12
15
American Robin
1
1
0.20
Black-billed Magpie
1
2
3
0.60
Black-chinned Hummingbird
1
1
0.20
Black-headed Grosbeak
2
2
4
0.80
Black-throated Sparrow
15
6
8
4
33
6.60
Brewer's Sparrow
7
1
1
9
1.80
Broad-tailed Hummingbird
1
1
2
0.40
Bullock's Oriole
1
1
0.20
Cassin's Finch
2
2
0.40
Chipping Sparrow
2
2
0.40
Clark's Nutcracker
1
1
0.20
Common Nighthawk
1
1
0.20
Common Raven
2
2
2
1
4
11
2.20
Dark-eyed Junco
1
1
0.20
Dusky Flycatcher
14
14
2.80
Green-tailed Towhee
20
20
4.00
Hairy Woodpecker
1
1
0.20
Hermit Thrush
13
13
2.60
Horned Lark
8
7
30
45
9.00
House Finch
1
3
4
0.80
House Wren
5
5
1.00
Lark Sparrow
27
12
39
7.80
Mountain Bluebird
2
2
0.40
27
BCR 16
Transect Name
PR1
PR2
PR4
PR8
PR10
Total #
detections
per species
Average #
detections
per transect
# points visited per transect
14
16
10
12
15
Mountain Chickadee
1
1
0.20
Mourning Dove
2
2
0.40
Northern Flicker
1
1
0.20
Northern Mockingbird
1
1
0.20
Olive-sided Flycatcher
7
7
1.40
Orange-crowned Warbler
6
6
1.20
Pine Siskin
4
4
0.80
Plumbeous Vireo
2
2
0.40
Red Crossbill
14
14
2.80
Red-breasted Nuthatch
5
5
1.00
Red-winged Blackbird
1
1
0.20
Rock Wren
10
19
12
41
8.20
Ruby-crowned Kinglet
4
4
0.80
Song Sparrow
1
1
0.20
Townsend's Solitaire
3
3
0.60
Unknown Bird
1
3
1
2
7
1.40
Unknown Empidonax
1
1
0.20
Unknown Hummingbird
1
1
0.20
Unknown Warbler
1
1
0.20
Vesper Sparrow
2
2
0.40
Violet-green Swallow
1
2
3
0.60
Virginia's Warbler
14
14
2.80
Warbling Vireo
13
13
2.60
Western Kingbird
1
1
0.20
Western Meadowlark
17
17
3.40
Western Tanager
13
13
2.60
28
BCR 16
Transect Name
PR1
PR2
PR4
PR8
PR10
Total #
detections
per species
Average #
detections
per transect
# points visited per transect
14
16
10
12
15
Yellow Warbler
1
1
0.20
Yellow-breasted Chat
3
3
0.60
Yellow-rumped Warbler
4
4
0.80
Total # detections per transect
172
31
89
32
65
389
Total # species per transect
32
5
18
6
6
48
Average # detections per point
12.29
1.94
8.90
2.67
4.33
5.81
29
Table 8. Detections for each of the Richfield Field Office (RI) transects in 2020. For ease of display, transect names have been shortened from their full
descriptors (e.g., UT-BCR9-RI1 is displayed as “RI1”).
BCR 9
BCR 16
Transect Name
RI1
RI2
RI4
RI1
RI2
RI3
RI4
Total #
detections
per species
Average #
detections
per transect
# points visited per transect
11
10
11
12
11
16
13
Ash-throated Flycatcher
4
1
3
8
1.14
Bewick's Wren
1
1
3
3
1
9
1.29
Black-billed Magpie
12
11
23
3.29
Black-capped Chickadee
1
1
0.14
Black-throated Gray Warbler
1
3
18
1
23
3.29
Black-throated Sparrow
1
7
15
11
9
43
6.14
Blue-gray Gnatcatcher
4
1
2
1
8
1.14
Brewer's Blackbird
2
2
0.29
Brewer's Sparrow
1
2
1
5
9
1.29
Broad-tailed Hummingbird
1
1
0.14
Brown-headed Cowbird
1
3
1
5
0.71
Canada Goose
4
4
0.57
Cassin's Finch
4
1
6
11
1.57
Chipping Sparrow
5
1
1
7
1.00
Chukar
2
1
3
0.43
Common Nighthawk
2
2
0.29
Common Raven
5
13
7
6
1
6
38
5.43
Dark-eyed Junco
3
3
0.43
Dusky Flycatcher
2
1
1
4
0.57
Eurasian Collared-Dove
2
2
0.29
Gray Vireo
5
3
1
9
1.29
Hermit Thrush
1
1
0.14
Horned Lark
3
9
1
13
1.86
House Finch
11
6
21
38
5.43
30
BCR 9
BCR 16
Transect Name
RI1
RI2
RI4
RI1
RI2
RI3
RI4
Total #
detections
per species
Average #
detections
per transect
# points visited per transect
11
10
11
12
11
16
13
House Wren
1
1
0.14
Juniper Titmouse
3
1
7
4
15
2.14
Lark Sparrow
6
13
7
2
9
37
5.29
Mountain Bluebird
3
3
0.43
Mourning Dove
11
2
1
3
17
2.43
Northern Mockingbird
3
3
0.43
Peregrine Falcon
1
1
0.14
Pinyon Jay
5
7
4
2
4
22
3.14
Plumbeous Vireo
2
11
13
1.86
Red-tailed Hawk
1
1
2
0.29
Rock Wren
13
4
20
34
71
10.14
Sagebrush Sparrow
18
18
2.57
Say's Phoebe
1
15
16
2.29
Spotted Towhee
3
1
4
0.57
Swainson's Hawk
5
5
0.71
Unknown Accipiter
1
1
0.14
Unknown Bird
2
1
1
4
0.57
Vesper Sparrow
6
6
0.86
Violet-green Swallow
8
7
15
2.14
Virginia's Warbler
1
1
2
0.29
Western Bluebird
1
1
0.14
Western Kingbird
2
2
0.29
Western Meadowlark
7
21
15
43
6.14
Western Tanager
1
1
0.14
Western Wood-Pewee
1
1
0.14
White-breasted Nuthatch
2
3
5
0.71
31
BCR 9
BCR 16
Transect Name
RI1
RI2
RI4
RI1
RI2
RI3
RI4
Total #
detections
per species
Average #
detections
per transect
# points visited per transect
11
10
11
12
11
16
13
White-throated Swift
1
1
2
0.29
Woodhouse's Scrub-Jay
1
1
1
3
0.43
Yellow-rumped Warbler
1
1
0.14
Total # detections per transect
98
99
79
85
53
130
38
582
Total # species per transect
25
18
22
22
10
17
6
51
Average # detections per point
8.91
9.90
7.18
7.08
4.82
8.13
2.92
6.93
32
Table 9. Detections for each of the St. George Field Office (SG) transects in 2020. For ease of display, transect names have been shortened from their
full descriptors (e.g., UT-BCR9-SG1 is displayed as “SG1”).
BCR 9
BCR 16
BCR 33
Transect Name
SG1
SG2
SG1
SG2
SG3
SG1
SG2
Total #
detections
per species
Average #
detections
per transect
# points visited per transect
13
12
10
14
16
15
15
American Goldfinch
1
1
2
0.29
American Robin
2
2
0.29
Ash-throated Flycatcher
1
6
7
15
1
1
6
37
5.29
Bewick's Wren
3
2
15
20
2.86
Black-chinned Hummingbird
1
5
6
0.86
Black-chinned Sparrow
31
4
7
3
4
49
7.00
Black-headed Grosbeak
2
1
2
5
0.71
Black-throated Gray Warbler
3
11
5
19
2.71
Black-throated Sparrow
26
14
28
23
9
100
14.29
Blue-gray Gnatcatcher
7
9
4
5
2
3
30
4.29
Brewer's Blackbird
6
6
0.86
Brewer's Sparrow
2
2
1
5
0.71
Brown-headed Cowbird
1
1
0.14
Bullock's Oriole
1
3
1
5
0.71
Bushtit
2
2
0.29
Cactus Wren
5
5
0.71
Canyon Wren
2
2
0.29
Chipping Sparrow
2
5
7
1.00
Chukar
1
1
0.14
Common Poorwill
1
1
0.14
Common Raven
6
2
1
8
4
2
5
28
4.00
Cordilleran Flycatcher
1
1
0.14
Costa's Hummingbird
1
1
2
0.29
33
BCR 9
BCR 16
BCR 33
Transect Name
SG1
SG2
SG1
SG2
SG3
SG1
SG2
Total #
detections
per species
Average #
detections
per transect
# points visited per transect
13
12
10
14
16
15
15
Crissal Thrasher
1
1
0.14
Dark-eyed Junco
1
1
0.14
Downy Woodpecker
2
2
0.29
Dusky Flycatcher
8
8
1.14
Gambel's Quail
1
1
2
0.29
Gray Flycatcher
1
1
2
0.29
Gray Vireo
11
6
8
1
26
3.71
Great Blue Heron
1
1
0.14
Green-tailed Towhee
1
1
0.14
Horned Lark
13
13
1.86
House Finch
1
13
5
4
1
10
34
4.86
House Wren
3
3
0.43
Juniper Titmouse
3
4
7
1.00
Lark Sparrow
1
1
2
0.29
Lazuli Bunting
20
1
6
27
3.86
Lesser Goldfinch
1
2
2
5
0.71
MacGillivray's Warbler
2
2
0.29
Mountain Bluebird
1
1
0.14
Mourning Dove
2
8
15
3
6
34
4.86
Northern Flicker
3
1
4
0.57
Northern Mockingbird
4
18
22
3.14
Orange-crowned Warbler
1
4
5
0.71
Pine Siskin
1
1
0.14
Plumbeous Vireo
6
1
5
12
1.71
Red-tailed Hawk
1
1
0.14
Rock Wren
5
5
7
3
1
21
3.00
34
BCR 9
BCR 16
BCR 33
Transect Name
SG1
SG2
SG1
SG2
SG3
SG1
SG2
Total #
detections
per species
Average #
detections
per transect
# points visited per transect
13
12
10
14
16
15
15
Sage Thrasher
2
2
0.29
Say's Phoebe
4
1
1
3
9
1.29
Scott's Oriole
3
2
6
1
12
1.71
Spotted Towhee
31
10
6
47
6.71
Turkey Vulture
4
2
1
7
1.00
Unknown Bird
2
4
1
8
9
24
3.43
Unknown Hummingbird
1
1
1
2
5
0.71
Unknown Sparrow
1
2
1
4
0.57
Unknown Vireo
2
2
0.29
Unknown Warbler
2
2
0.29
Unknown Woodpecker
1
1
0.14
Violet-green Swallow
1
1
0.14
Warbling Vireo
3
1
1
1
6
0.86
Western Meadowlark
5
26
31
4.43
Western Tanager
5
1
5
11
1.57
White-crowned Sparrow
1
1
0.14
White-throated Swift
1
1
0.14
Wild Turkey
1
1
0.14
Wilson's Warbler
1
6
7
1.00
Woodhouse's Scrub-Jay
12
5
1
17
35
5.00
Yellow Warbler
2
2
1
2
7
1.00
Yellow-breasted Chat
1
1
0.14
Yellow-rumped Warbler
14
14
2.00
Total # detections per transect
164
123
107
161
77
103
70
805
Total # species per transect
25
24
28
30
17
17
16
66
Average # detections per point
12.62
10.25
10.70
11.50
4.81
6.87
4.67
8.47
35
REFERENCES
McLaren, M. F., Smith, M., Timmer, J. M., Drilling, N. E., Green, A. W., Leslie, B. J., White, C.
M., Van Lanen, N. J., Pavlacky Jr., D. C., Sparks, R. A., & Van Boer, A. G. 2020a.
Integrated Monitoring in Bird Conservation Regions (IMBCR): 2019 Field Season
Report. Bird Conservancy of the Rockies. Brighton, Colorado, USA.
McLaren, M. F., C. M. White, N. J. Van Lanen, J. J. Birek, J. M. Berven, and D. J. Hanni.
2020b. Integrated Monitoring in Bird Conservation Regions (IMBCR): Field protocol for
spatially-balanced sampling of land bird populations. Unpublished report. Bird
Conservancy of the Rockies, Brighton, Colorado, USA.
ACKNOWLEDGMENTS
We thank the Utah Bureau of Land Management and Utah Division of Wildlife Resources,
especially Russ Norvell, Dave Cook, Terri Pope, Christine Fletcher, and Jared Reese, for funding
support and logistical help. We also thank Rema Sadak, Matt Meccariello, and Jeff Jewkes from
U.S. Forest Service Region 4 and Robbie Knight, Keeli Marvel, and Russ Lawrence from the
Department of Defense for support in collaborating across the state. Thanks to Bird Conservancy
of the Rockies for support in implementing IMBCR surveys. We are also grateful to Adam
Bradley, Dominique Tarr, and Josh Fife for conducting the bird surveys.