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Increased urbanization and supplementary feeding are implicated in driving the expansion of the range of the Anna’s Hummingbird (Calypte anna). In many areas this range expansion has been well described, but the recent expansion of the northeastern limit of the nonbreeding distribution, in winter in Idaho, has not yet been summarized. Using data fr...
Contexts in source publication
Context 1
... 2019, we recaptured another two individuals at the locations of their banding the previous winter. Although not examples of precise site fidelity, we also recaptured two individuals that were within 1 km, and a third individual within 6.5 km, of locations of their original banding (Table 2). Homeowners did not report these birds during the intervening summer. ...Context 2
... 2019, we recaptured another two individuals at the locations of their banding the previous winter. Although not examples of precise site fidelity, we also recaptured two individuals that were within 1 km, and a third individual within 6.5 km, of locations of their original banding (Table 2). Homeowners did not report these birds during the intervening summer. ...Citations
... This first documented successful breeding of the Anna's Hummingbird in Idaho provides a marker on the chronology of the species' range expansion into the state. This chronology has thus far been well documented through the methods outlined by Pollock et al. (2021). Continued focus and documentation of the increase in numbers, as well as of further instances of breeding, will provide fine-scale details to the ongoing range expansion experienced by this species since the urbanization of the West accelerated in the middle of the 20th century. ...
