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Satellite tracking reveals age and origin differences in migration ecology of two populations of Broad-winged Hawks (Buteo platypterus)

Rebecca A. McCabe, Auteur ; Laurie J. Goodrich, Auteur ; David R. Barber, Auteur ; Terry L. Master, Auteur ; Jesse L. Watson, Auteur ; Erin M. Bayne, Auteur ; Autumn-Lynn Harrison, Auteur ; Peter P. Marra, Auteur ; Keith L. Bildstein, Auteur

Dans Wilson Journal of Ornithology (The) (132(1) July, 2020)

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Increase in Numbers and Potential Phenological Adjustment of Ruby-throated Hummingbirds (Archilochus colubris) during Autumn Migration at Hawk Mountain Sanctuary, Eastern Pennsylvania, 1990–2014

Jennifer C. Probst, Auteur ; Jean-François Therrien, Auteur ; Laurie J. Goodrich, Auteur ; Keith L. Bildstein, Auteur

Dans Wilson Journal of Ornithology (The) (129(2) June, 2017)

ABSTRACT Global change can affect several aspects of bird biology, including population size and migration timing. We used count data collected during 25 years (1990?2014) at Hawk Mountain Sanctuary, a raptor migration watch-site in eastern Penn[...]

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North American population estimates of waterbirds, vultures and hawks from migration counts in Veracruz, Mexico

Ernesto Ruelas Inzunza, Auteur ; Laurie J. Goodrich, Auteur ; Stephen W. Hoffman, Auteur

Dans Bird Conservation International (20(2) JUN 2010)

Continental-scale bird population estimates are used as a decision-support tool in conservation plans. The calculation of these estimates includes the use of density values and survey data from one or multiple sources extrapolated to the geograp[...]

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