Results 61 to 70 of about 6,699 (246)

Causes of mortality in eagles submitted to the National Wildlife Health Center 1975–2013

open access: yesWildlife Society Bulletin, 2014
We summarized the cause of death for 2,980 bald eagles (Haliaeetus leucocephalus) and 1,427 golden eagles (Aquila chrysaetos) submitted to the National Wildlife Health Center in Madison, Wisconsin, USA, for diagnosis between 1975 and the beginning of ...
Robin E. Russell, J. Christian Franson
doaj   +1 more source

Functional and phylogenetic convergence of winter and breeding bird communities in the northeastern US

open access: yesEcography, Volume 2025, Issue 10, October 2025.
Around the world, ecological communities are becoming more similar to one another in a process known as biotic homogenization – an increase in similarity among communities over time. While biotic homogenization has been widely studied among spatial communities, very little attention has been paid to beta diversity between seasonal communities ...
Peter J. Williams, Shannon R. Curley
wiley   +1 more source

Bald eagle population increase, reproductive success, and nesting habitat in central interior California

open access: yesCalifornia Fish and Wildlife Journal
Over much of its range, the bald eagle (Haliaeetus leucocephalus) has substantially recovered from declines in the mid–late 1900s, which resulted from habitat loss, human persecution and disturbance, and contamination by the pesticide DDT.
Daniel A. Airola   +6 more
doaj   +1 more source

Evaluation of Wind‐Energy Survey Protocols for Migrating Eagle Detection

open access: yesWildlife Society Bulletin, 2018
Wind energy development is increasing in the United States and Canada and may affect bald (Haliaeetus leucocephalus) and golden eagle (Aquila chrysaetos) populations through direct mortality.
Eric Chabot, Steve Slater
doaj   +1 more source

Community‐informed and codesigned research to understand the impacts of railways on wildlife

open access: yesConservation Biology, Volume 39, Issue 5, October 2025.
Abstract Trains cause mortalities of several animal species, but the ecological impacts of railways are understudied. Most research on wildlife–train collisions has focused on large mammals, but understanding railway‐specific risks for underrepresented taxa, especially vulnerable species, is important for developing effective mitigation strategies ...
Kyle D. Vincent   +5 more
wiley   +1 more source

Rare and Endangered Vetebrates of Ohio [PDF]

open access: yes, 1973
Author Institution: U.S. Soil Conservation Service; Introductory Biology Program, The Ohio State University; School of Natural Resources, The Ohio State University; and Division of Wildlife, Ohio Department of Natural ResourcesThis paper, an annotated ...
Burnard, R. K.   +3 more
core  

The shapes of bird beaks are highly controlled by nondietary factors [PDF]

open access: yes, 2016
Bird beaks are textbook examples of ecological adaptation to diet, but their shapes are also controlled by genetic and developmental histories. To test the effects of these factors on the avian craniofacial skeleton, we conducted morphometric analyses on
Beecher   +10 more
core   +5 more sources

Past research and future directions in understanding how birds use their sense of smell

open access: yesIbis, Volume 167, Issue 4, Page 853-881, October 2025.
Our understanding of the functional importance of olfaction to birds has improved over the past 60 years, largely as the result of experimental studies testing how birds use their sense of smell in different contexts. As it is impossible to measure directly which odours birds can detect, we rely on measuring behavioural responses to scent cues or ...
Darcy Creece   +2 more
wiley   +1 more source

The Phylogenetic Study of the White-Bellied Sea Eagle [Haliaeetus leucogaster (Gmelin, 1788)] Based on DNA Barcoding Cytochrome-c Oxidase Subunit I (COI) [PDF]

open access: yes, 2017
Even though not yet considered as endangered, White-bellied Sea Eagle’s global population is decreasing due to illegal hunting, bird trading, and deforestation.
Hermadhiyanti, Windri   +2 more
core   +2 more sources

Testing the role of contaminants in depressing avian numbers Evaluando el rol de los contaminantes sobre la disminución del número de aves

open access: yesRevista Chilena de Historia Natural, 2000
Environmental contaminants are ubiquitous and so are often key suspects in cases of lagging wildlife populations. How do we test hypotheses about cause-effect linkages between contaminants and wildlife health?
WILLIAM H. KARASOV, MICHAEL W. MEYER
doaj  

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