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Academic Journals
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From:The Wilson Journal of Ornithology (Vol. 119, Issue 2) Peer-ReviewedWe investigated several reproductive attributes among three spatially and morphometrically separable northern populations of breeding Cooper's Hawks (Accipiter cooperii) in differing ecological settings in British...
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From:Science (Vol. 239, Issue 4847) Peer-ReviewedCooperative Hunting in Harris' Hawks (Parabuteo unicinctus) COOPERATIVE HUNTING, WHEN INdividuals coordinate actions such that the probability of successful capture of one large prey item that is shared among all...
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From:Wilson Bulletin (Vol. 112, Issue 3) Peer-ReviewedKEITH A. HOBSON [1,2] ERIN BAYNE [2,3] ABSTRACT.--Little is known about the effects of forest fragmentation on bird communities in the boreal forests of western North America. Assessing the impact of forest...
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From:Wilson Bulletin (Vol. 112, Issue 4) Peer-ReviewedTheresa Panasci [1,2,4] David Whitacre [3] ABSTRACT--In 1993 and 1994, we collected data on the diet and foraging behavior of Roadside Hawks (Buteo magnirostris) in primary tropical forest with slash-and-burn...
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From:The Wilson Journal of Ornithology (Vol. 128, Issue 1) Peer-ReviewedInterspecific nest usurpation was observed when a Eurasian Collared-Dove (Streptopelia decaocto) took over the nest of an American Robin (Turdus migratorius) in Plainview, Hale County, Texas in April 2014. The nest was...
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From:Wilson Bulletin (Vol. 111, Issue 3) Peer-ReviewedWhen the last two eggs of Mountain Bluebird (Sialia currucoides) clutches were replaced with another bluebird egg and one House Sparrow (Passer domesticus) egg, 20% (3/15) of the sparrow eggs were removed within 24 hr....
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From:The Wilson Journal of Ornithology (Vol. 129, Issue 2) Peer-ReviewedABSTRACT.--Many species of songbirds in the United States have shown widespread declines in population numbers during the last five decades. To understand ongoing declines and plan for conservation, researchers need...
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From:The Wilson Journal of Ornithology (Vol. 129, Issue 2) Peer-ReviewedABSTRACT.--The Brown Dipper (Cinclus pallasi) was discovered to be a regular winter resident in the mountains of Verkhoyansk Range in Northeastern Siberia. This area is one of the coldest in the Northern Hemisphere,...
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From:The Wilson Journal of Ornithology (Vol. 128, Issue 4) Peer-ReviewedSince the first bird observatory was established over a century ago, hundreds have been established around the world. Classic observatories share a focus on capture and study of birds in the hand, particularly migrants....
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From:The Wilson Journal of Ornithology (Vol. 128, Issue 4) Peer-ReviewedWe observed a fledgling abandonment and adoption event that subsequently led to an extended period of interspecific parental care between a male Black-and-white Warbler (Mniotilta varia) and two radio-tagged fledgling...
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From:The Wilson Journal of Ornithology (Vol. 128, Issue 4) Peer-ReviewedParental investment is a unique balance between optimizing reproductive success and survival, yet how individuals vary their effort with respect to age and the contributions of their partner remains poorly studied....
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From:The Wilson Journal of Ornithology (Vol. 129, Issue 3) Peer-ReviewedABSTRACT.--Whereas most host species parasitized by Brown-headed Cowbirds (Molothrus ater) accept cowbird eggs in their nests, others reject the foreign eggs or desert parasitized clutches. Chipping Sparrows (Spizella...
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From:The Wilson Journal of Ornithology (Vol. 129, Issue 4) Peer-ReviewedThe use of song by wood-warblers (Parulidae) with multiple song types has received little attention during migration. On the breeding area, the two song types serve to attract mates and defend territory, but the...
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From:The Wilson Journal of Ornithology (Vol. 129, Issue 3) Peer-ReviewedABSTRACT.--The behaviors of animals can be highly variable across individuals and environments; however, recent studies have demonstrated that the behaviors of individuals in response to similar environmental stimuli...
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From:Wilson Bulletin (Vol. 109, Issue 2) Peer-ReviewedA preliminary study to determine whether intermittent bouts of incubation occur during House Sparrow's egg laying was conducted. Results indicate that bouts of incubation usually coincide with the laying of the first...
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From:Marine Biology (Vol. 162, Issue 10) Peer-ReviewedTrophic relationships are a central theme in ecology and play a crucial role in the survival of organisms, because the availability of food resources varies over time and space. Until recently, most ecological studies...
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From:Ornis Fennica (Vol. 94, Issue 3) Peer-ReviewedThe number of House Sparrows (Passer domesticus) in urban populations has decreased considerably in recent decades in many parts of Europe, particularly in its western part. In Warsaw (Poland), between the 1970s/1980s...
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From:The Wilson Journal of Ornithology (Vol. 130, Issue 4) Peer-ReviewedThe White-tipped Dove (Leptotila verreauxi) is an understudied, secretive, game species in south Texas. We banded White-tipped Doves over a 2-year period in Estero Llano Grande State Park (ELGSP) near Weslaco, Texas. We...
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From:Canadian Journal of Zoology (Vol. 96, Issue 12) Peer-ReviewedUnderstanding full annual cycle movements of long-distance migrants is essential for delineating populations, assessing connectivity, evaluating crossover effects between life stages, and informing management strategies...
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From:The Wilson Journal of Ornithology (Vol. 130, Issue 4) Peer-ReviewedWe studied how adult age and condition are related to nest initiation date and estimated survival and age at maturation in the American White Pelican (Pelecanus erythrorhynchos Gmelin, 1789), a long-lived, migratory,...