Questions related to Ornithology
I am looking for data of the wavelenghts of maximum spectral sensitivities in each of the photoreceptors in any species within the sunbirds family (Nectariniidae).
I am a second year student at Bangor University looking for a dissertation question for my final year.
I am mainly interested in working in the field, mainly basing my research on herpetology (Though I am not opposed to researching ornithology or entomology based questions)
I was just wondering if anybody had any good ideas for a dissertation as I am really struggling and would like expert opinions.
Dear RG community members,
I hope you are well and helthy and ready for small discussion. My question is, can we efficiently increase the population of wetfowls in wetland areas by constracting and using artificial nests suitable for specific taxa? If you also have any reference on that issue, I would be grateful.
I found these seeds (photo attached) in the gizzards of Green-winged Teal (n=51), and I was hoping that someone on here could recognize them before I start diving into the seed manuals to identify them. I am not good with wetland seed identification but I'm pretty sure the second from the left in the middle row is Polygonum lapathifolium. If you have any book recommendations too please let me know, these were found in coastal North Carolina. Thanks!
The recent studies (including ours: https://1url.cz/rKhj9, https://1url.cz/WKhj8 and https://doi.org/10.13140/RG.2.2.36573.13288) highlight the importance of small farms and poultry yards (especially hens) as an important foraging site for some granivorous birds inhabiting countryside settlements. On the other hand, there are (anecdotal) observations of hens attacking and killing small passerines. Additionally, I expect competition for invertebrates, attracted to poultry-yard but eaten by hens, thus unavailable for wild birds.
I´m wondering if there is some published or even unpublished work/paper/observation of this interaction or other negative impacts of hens and poultry yards on wild birds.
Legumes and Ficus tree is strong candidate as reforestation starter and able to grow in harsh condition. Both are important agent for fixing soil quality.
But in term restore forest birds habitat, which one is can profide more ecological service? Which on is needed first? Ficus to support frugivores species or Legume as insect refugia to attract insectivores?
we are searching for publications on the occurrence of European nightjar (Caprimulgus europaeus) in solar parcs. Does the species breed and/or feed there? How do the photovoltaic modules affect the occurrence of the species?
Thank you for your replies.
Can you please identify those bird skulls and a stemum.
1-3. Passeriformes, length 42mm
4-5 Turdus sp, length 53mm
6-8 Rissa tridactyla, length 86mm
9-10 Turdus stemum, length 160mm
What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic approach. Is there any other way to measure growth rates in that case?
I am looking for a description of a methodology for bird counts (census), which is applicable to airport area and will allow me to collect the data about species diversity and abundance at four different objects with seasonal and daily fluctuations, in order to analyse ornithological safety of those objects and compare them in terms of this safety.
I would appreciate, if somebody shared such methodology or recommended works (papers, books), where it is described in detail.
I would also like to inquire - I am no ornithologist, nor zoologist (my specialization is environmental engineering), so would it be possible for me to make those counts (census) alone, without help from specialist?
Thank You in advance.
What would be the best method for analysing trends in species abundance in a single area in Latin America over a 15 year period? Could TRIM be used for this purpose?
I don't have data about several point-counts in the area over the years. All I have is total abundace per species per year in the area.
We found a Long-eared Owl breeding in a rock face in eastern Switzerland. I never heard about such a nest site from Central Europe. But there are observations of such a behaviour from Kazakhstan (Karyakin et al. 2007), Mallorca (König, pers. comm.) and Canary islands (Scott 1997). Does anybody know further cases of Long-eared Owls breeding in rock faces?
I've been googling around for quite some time trying to find papers pertaining to pilot studies on ecological/wildlife/biodiversity assessment research, but with little success. Most of them pertain to medical research only. Shall be grateful.
I am authoring a paper on Blanford's Laughing Thrush, Montecincla meridionalis (Blanford, 1880). On its ecology and distribution. I wanted to know of Ebird personal checklists are accepted as references in any standard Journals.
I am Sachin Kumar, pursuing my Ph.D. in Ornithology, from PAU, Ludhiana. I am working on avian diversity along the River Beas. I had submitted a manuscript to a journal having keywords "
riparian zone, river, species richness, species evenness, and Ornithofauna". The journal has asked me to provide a list of reviewers from outside India. I need consent from some reviewers that they will review my manuscripts if it came to them for review. I don't know anyone outside India from the field of ornithology or Biodiversity.
If anyone can review my manuscript. I will be thankful to the person.
I will need details regarding the position, affiliation, email address, postal address, and phone number.
I hope someone accepts my request
Department of Zoology
Punjab Agricultural University
Ludhiana, Punjab, India
Any seabird folks out there have an endnote style file for Marine Ornithology? Nothing available online, trying to avoid creating one from scratch - thanks!
Perhaps we can make the file publicly available on a permanent basis so folks aren't having to waste time reinventing the wheel each time they want to submit to MO... #progress
Hello, I have mapped the locations of several individuals of a certain species of bird. I have the GPS coordinates, the date and the time data every half hour for several consecutive days and I am trying to apply the Package 'mkde' to get the kernel density maps based on the movement (home range). Is there someone with experience in using this package who can help me?
Thank you very much!
Would like to conduct a detailed study into vulture diversity, abundance, population density and movement patterns on the endangered Hooded vulture within Ghana as well as current threats that are leading to its reported population decline within the range. I would very much appreciate papers on similar studies and pointers on properly designing the study as well as possible funding sources. Thanks
I was wondering if you know of any case in which breeder/floater ratio in birds is monitored over the years while observing changes in nest-site availability. Floaters in one of my focus populations are very abundant and I would like to discuss to what extent this could be an indicator of nest-site restriction.
I am looking for the correct selection of tags to use to monitor tree swallows moving in and out of nest boxes. My impression is that full duplex tags would be more appropriate but many studies don't specify.
The Manuscript deals on sexual ornaments and non-breeding events in a Eurasian ornamented bird. It was fisrtly unaccepted in Bird Study, Animal Behaviour, Behavioural Ecology and Sociobiology, Acta Ethologica.
I have been trying to estimate rates of mortality due to human causes, but this requires estimates of population size. I have developed two methods for estimating global population size of all birds. However, I wonder if anybody has come up with an alternative estimate.
Thank you for your help.
Anders Pape Møller
I want to publish a paper regarding avian biodiversity and community interactions in different habitats. I need the suggestion of good journals to publish my work
I need to publish fast as some journals take too much time to publish, so I will appreciate if someone suggests some good journal that publishes the data within 2 months
I wish to know if there is any physiological characteristics that can distinguish the male nestlings from the females in case of Passer domesticus.
I am looking for additional data as the amount of occurrence data on gbif is very limited. In particular I look for data with little spatial uncertainty, i.e. with coordinates fixed by GPS or in the vicinity of landmarks. I would be grateful if you could point me to a database or publications containing this information!
I'm looking for a modern high definition (or close) video recording system to monitor open-cup bird nests in the field. I'm interested in a set up that will allow me to record for several hours, preferably up to 24 hrs. This will presumably require a mobile external power source. Most published examples I've found only record for a few hours at a time (until the camera battery dies) or are out-dated (poor image quality). I'd like a rain resistant set up if possible (i.e., innovative field-tested methods to keep equip dry). If anyone has experience or ideas I'd appreciate information.
I wanted to see the difference in the food preferences or the shift in the foraging behaviour of a bird species between the individuals who solely depends on the foods available in the wild habitats (its innate food habits) and those who depends mostly on the human left overs as an alternative source of food. I also wanted to know is there any disruption to their innate foraging preferences or food preferences change because of this?
I am looking for research and methodology for mapping roof-nesting seabirds in urban environments. This is for a pilot project. Any tips and articles are appreciated! Thanks.
I have a dataset of about 100 bird surveys carried out in high-altitude ecosystems in the Andes for my Master's thesis. At this stage of the analysis, I'm planning to use GLMM's to look at the abundance of each among a few selected species, as response variable, and a number of environmental variables as explanatory variables. I have opted for GLMM's instead of regular GLM's since there are nested groupings of non-independent data in my counts: there were eight woodland patches covered, each countaining/near 5 to 10 survey points, and each survey point was surveyed twice, at different times of the day. In this case, survey point and patch would be random effect variables in the GLMM.
I'm having more trouble, however, in thinking how to model the fixed effects. Some of them (e.g. time of the day, weather condition) are specific to each survey, some of them (e.g. most vegetation/habitat variables) are specific to each point, and some of them (e.g. patch area, patch connectivity) are measured per patch. What would good practice be in writing a model in this case?
I'm conducting analysis of bird counts for my Master's thesis on effects of patch size and connectivity on birds of High Andean landscapes. My first goal is to use ordination analysis to figure out which bird species are associated to each of the different kinds of habitat (forest, transitional and open matrix). I have lots of environmental/spatial variables recorded, but I decided to begin with an unconstrained ordination, just labeling the sites with different colours according to habitat and checking which sites and which species seem to group together.
My data is not very good (for many reasons, one of them just not having had enough time in the field) but I'm trying to salvage it the best I can. I've ran a CA and a DCA on my species matrix, using vegan package in R, and the procrustes function shows me large (and quite chaotic) differences between the plots from one method and the other. Is this telling me that arch effects or compression of extreme scores is happening with the CA, and so I should opt for the DCA? Or is it just because the CA explains very little variation in the data (the first two axis amount to around 18% of total inertia), so sites and species will just float around with no real meaning when I do the DCA?
A little extra question - would it help me to get more variation explained if I remove from my dataset some of the rarest species or some of the ones that move around the most between the CA and the DCA?
Is there any paper on how floaters develop 'territoriality' between them in birds? As they are not territorial individuals per se, I wondering if there is some background on how they exploit resources on different ways, being some of them more associated with high-quality resources whereas others not, mainly due to agonistic behavior.
I haven't found many records flood-caused nest loss for woodpeckers, and I'm curious to know how common an issue it is for the family. It seems like flood-induced nest failure is unusually high for Hispaniolan Woodpeckers nesting in live trees. The only primary account I've found so far was for Red-headed Woodpeckers (Berl et al. 2014). Wesołowski et al. (2002) provides two personal communications for two other species (Magellanic and Yellow-shafted Flicker). Other than those, I'm struggling to find info for other species.
If you have any observations of flooding or have conclusively excluded it as a cause of nest failure, I'd be very interested to know, especially if you have a paper I can cite.
Berl, J. L., Edwards, J. W., Bolsinger, J. S., & Katzner, T. E. (2014). Survival of Red-headed Woodpeckers’ (Melanerpes erythrocephalus) nests in northern New York. The Wilson Journal of Ornithology, 126(4), 700–707. http://doi.org/10.1676/14-009.1
Wesołowski, T., Czeszczewik, D., Rowiński, P., & Walankiewicz, W. (2002). Nest soaking in natural holes - A serious cause of breeding failure? Ornis Fennica, 79(3), 132–138.
I am looking to track within breeding season movements of a 25 g bird. The species is not philopatric, so trackers that require recapture are not an option. Trackers must be under 0.75 g per USGS regulations. I'm thinking I am going to be limited to radio transmitters but if you know of other options, I would be very interested. Do you have a favorite radio transmitter brand? Cost is a major consideration. Thank you!
Colleagues and I are weighing options on how to fit GPS transmitters to adult Black Swans in New Zealand. Adults weigh ~4-7 kg. We're apprehensive about using collars as they may get caught in vegetation while foraging. Also concerned about satellite uplink capabilities down here (collars are only available from overseas companies). Another option is a dorsal attachment, but we've been advised against using any type of harness. We're leaning towards tail-mounting ~40g transmitters (Sirtrack PinPoint Iridium) to tail feather(s) just after moult. We should be able to get ~3 fixes per day for 9 months, which would cover winter and the following breeding season. However, we're concerned about whether these will stay attached. Tail-mounting has been done on gannets, penguins, gulls... but I haven't seen this on swans or other large waterfowl. Curious if anyone has any suggestions.
Thanks in advance.
I would like to investigate whether there is genetic diversity between different population of Guinea fowl, what is the proper way.
I want to make a QGIS database for my ringing activity. I would like to add my ringing data to ringing place points in a way that more individually ringed birds ringed on a specific location (1 point) would correspond with the point. Can I make a simple shape file with points, or sqlite database? Does anybody have some basic instruction manuals that I could use for this?
Dear Fruit-dove biologists, I try to gather data for a Population Viability Analysis of Ptilinopus coralensis. Do you have such data: maximum age reproduction, sexual maturity, mortality %, etc. for other Ptilinopus sp. This is for a conservation project. Thanks for your knowledge!
I need data about Lesser Whistling Duck (Dendrocygna javanica) for my research work. Any data regarding their defecation rate, fecal N and P content, feeding habit daily migration pattern is welcomed.
In my research activities on Phillip Island off Norfolk, South Pacific, I have recorded an example of cross-fostering with a species of Pterodroma incubating and rearing an Ardenna (Puffinus) species. This nest was followed (several visits then surveillance camera) from incubation until the near-fledged chick left the nest area following abandonment of breeding pair. I am seeking examples of other burrowing species doing the same. If unpublished material of similar extent, I and my co-authors are happy to work towards a joint note in an ornithological publication.
There has been many new changes in taxonomic names of plants and animals. I am curious about what this means for prior studies that have documented species richness, diversity and biodiversity?
E.g., The Auk 134(3):751-773. 2017 https://doi.org/10.1642/AUK-17-72.1 Fifty-eighth supplement to the American Ornithological Society's Check-list of North American Birds.
We are setting up a bird monitoring programme (for all species) over an area of 93,000 ac or ~38,000 ha in savanna, grassland and forest habitats in Kenya. Time constraints are a major issue and surveys will only be done twice/yr for a period of 4-days per survey. We plan to set up point counts in as many of the different and/or unique habitats as possible. We need to capture both resident and seasonal migrants. We have big challenges with the driving distances involved and I am wondering how best to maximize our limited survey time and how much time to allocate to each point count? Would 15 min be appropriate per count? What are the costs and benefits to allocating more or less time per count, clustering points to eliminate driving times, etc? I realize that it will be difficult to detect changes, especially in the immediate timescale, given how large an area it is and how relatively few points we will have. But basically I am asking for advice about key factors to consider when setting up the points and the methodology given the large area and time constraints.
Do you have recommendations of artificial burrows for these seabirds, that you experienced:
Polynesian Storm-petrel: Nesofregetta fuliginosa
Herald Petrel: Pterodroma heraldica
Murphy’s Petrel: Pterodroma ultima
Tahiti Petrel: Pseudobulweria rostrata
We would like to attract these species on a new remote nest site.
Literature exist but maybe you discovered something new.
greetings. i am doing research on factors that influence skin color. i have seen all environmental factors and also Charles Darwin theory of natural selection has helped me. your answers will open my ideas on genetic influences to skin color.
Hello everyone: I would like to know about how to evaluate the ornithological value (or importance) of a series of wetlands; or the conservation value of a series of wetlands for birds. Imagine you have the list of bird species inhabiting two wetlands, A and B. And you also have the abundance values of each species at each wetland. If you restrict your study to birds, how can you assess the conservation value of wetland A vs. wetland B?
I guess something like an Index of Biological Integrity (IBI) could work...
Any help from you will be welcome. Thanks in advance:
I cannot find the exact reference(s) regarding the split of the famous Larus argentatus complex. I need scientific reference showing what species were formed after the complex got split and when exactly that happened. Thanks in advance to those who will help.
Blease, my article tilteled " Developmental stability in chickens local to warm climatic region 2. Variation in blood metabolitesbdue to genetic selection and crossing" is cited by article "Haematological and biochemical profiles of Gallus indigenous, exotic and hybrid chicken breeds (Gallus domesticus l.) from Rajshahi, Bangladesh" please add this cited to my citation
I found that SODA is rarely used in recent papers but I don't see how others account for the problem that minimum stopover length (as directly estimated by ringing data) can dramatically differ from real stopover.
I'm doing a research paper about the morphological, and behavioral differences of urban and rural populations of Bolbopsittacus lunulatus and I want to know the ideal number of individuals to sample.
In a numbers of occasions I have seen in Bulgaria Common Kestrels (Falco tinnunculus) with prominent differences in the size of the black spots on the back of the male individuals - from 'normal' (large) to very tiny and narrow ones. The localities of the male birds with very narrow black markings coincident only with the areas, of occurence of the Lesser Kestrel (Falco naumanni).
I am searching for any data on the density of a birds’ beak (g/cm3). I have so far found one paper on the density of toucan and hornbill beaks (Seki et al. 2010, Acta Biomaterialia 6 (2010) 331–343), showing that the density of these beaks ranges from 0.1 to 0.4 g/cm3, but I suspect these beaks may not be too representative of the ‘average’ bird beak (as far as an average bird beak density makes sense…).
Any suggestions on literature with bird beak density data for other species are highly appreciated!
All the best,
Please help me identify those feathers. All are collected from Estonia.
1&2 Columba sp. - collected from forest near is moor and futher little village.
Tail feather is too short for C. palumbus, might it be C. oenas?
3. Accipiter gentilis? - collected from moor
4&5. Turdus sp.? - collected from moor
6&7. Cyanistes caeruleus? - collected near forest
the feathers called which cover the base of the primary and secondary wing
and main tail feathers?
Hello. What are non-lethal ways or trapping methods that may be used to capture birds, both in an urban setting and in the wild? The purpose mainly is for a comparison of the morphological differences, among others, of the birds relative to their habitat. Also, what is the ideal number of specimens to obtain for such a task? Several journal articles of similar studies used varying numbers of individual birds for their observation, and comparison.
It is a domestic duck. Generally domestic ducks are result of interbreeding of wild duck species. I snapped this image from Santiniketan, West Bengal, India today. Colour is quite similar to Lesser whistling duck, which is common here. Please tell me is it close to Lesser Whistling Duck?
I'm looking for alternative methods to diagnose seasonal disease outbreaks in waterfowl. It has been difficult to find a lab available to perform the mice bioassay, so I'd like to know if there are other options. Thank you.
I plan on conducting playback surveys at points for Owls along an urban-to-rural gradient in Western Massachusetts. Some sites are pretty rural, but others need to be in more urban areas (e.g., just outside of forested parks). In a perfect world, Owl surveys should be conducted from 1 hour after sunset until about 3 a.m., but this presents unique safety challenges in urban areas (along with permitting issues). How would one go about surveying for Owls in these urban sites with undergraduate field technician safety in mind? The owls I will be surveying for are Northern Saw-whet, Eastern Screech, Barn, Barred, Great Horned. Thanks much!
I'm interested in exploring the use of conservation dogs for detecting cryptic bird nests. Any insights regarding experiences, costs, advice, things to consider etc. would be greatly appreciated.
Study species: American Woodcock
Study site: New Jersey, USA
I can identify to species beetle fragments from Little Owl pellets, especially from Britain or Western Europe. I think this will inform feeding habits/ foraging sites of the birds, as well as giving data on the distribution of the beetles. Any birders want to collaborate?
I´m working on a comparative study of the reproductive behaviour of Chlorocyphidae and in the last years I could study most genera of chlorocyphids in field. Unfortunately, I know the two clear-winged Cyrano species only from some single males. Can someone give me information about the reproductive behaviour of these species?
A lot of birds sounds databases exist. There is also a lot of publications comparing sonograms of different species. Have anybody know one publication concentrating all sound frequencies of European common bird species?
Although some of the larger-beaked tits can act as predators on medium sized seeds, many (all?) tit species in East and Southeast Asia also eat soft, small-seeded fruits, such as figs. I presume a small seed is safe if it is swallowed intact by a tit, but has anyone checked their feces for intact seeds?
I have been working on many aspects of grebe flight, particularly eared grebes (or black-necked grebes) migratory flight.
Unfortunately, there is very little documentation of grebes flying available in the internet (Youtube, Flirck, etc.). Moreover most of these videos do not have the necessary quality to do any kinematic analysis.
Therefore, I would be very thankful if anyone can point me into the direction where to find good videos or share contacts that I could make further enquiries.
I am using crowd sourced data on bird observations. (species presence/absence, abundance, time and location) I hope to supplement with in situ point count surveys along transects that represent development and habitat variation. habitat will be detected with remote sensing and multispectral imagery.
I am using R and Tableau.
any recommendations on finding the correlations between
1 species and the changes in habitat?
Multiple species and a single representative species?
functional groups and the habitat?
please share references on statistical treatments.
We are three students and need your support for our project about the equipment for Nature Observation and Hunting in Scandinavia.
Its mostly about binoculars and scopes.
As we do it in Scandinavia, it turned out to be pretty hard for us to find people.
That´s why we would be so pleased if you can support us! It would help us a lot!!
Just fill out this survey:
Thanks a lot!