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Experimental evidence for intrinsic microhabitat preferences in the Black-throated Green Warbler

Article Abstract:

Black-throated Green Warblers belonging to different geographic origins of Maine and New Hampshire are guided by similar intrinsic preferences in their choice of deciduous and coniferous vegetation. Although the birds demonstrated the ability to change foraging-sites, the microhabitat selection remained the same despite a reduction in the availability of food in the preferred substrates. Coniferous vegetation is preferred by species with long tarsometatarsi as it enhances the range of leg motion, while moving among the long, dense needles of coniferous foliage.

Author: Parrish, Jeffrey David
Publisher: Cooper Ornithological Society
Publication Name: The Condor
Subject: Biological sciences
ISSN: 0010-5422
Year: 1995
Analysis, Habitats, Niche (Ecology), Niches (Ecology)

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Constraints on double brooding in a neotropical migrant, the Hooded Warbler

Article Abstract:

Time and energy are important constraints on double brooding in the Hooded Warbler, Wilsonia citrina. The frequency of double brooding declines as the breeding season progresses. Females whose first nest is preyed upon rarely double brood. The main cost in the double brooding birds is a three week delay in molt, as compared to that in the single brooding birds. The delay in the molt further delays adult migration and acquisition of a winter territory. It also imposes a high energy cost due to overlap of molt and fledgling care.

Author: Stutchbury, Bridget J.M., Evans Ogden, Lesley J.
Publisher: Cooper Ornithological Society
Publication Name: The Condor
Subject: Biological sciences
ISSN: 0010-5422
Year: 1996
Bird breeding

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Influence of treefall gaps on distributions of breeding birds within interior old-growth stands in Bialowieza Forest, Poland

Article Abstract:

Research concerning the breeding distribution of different forest bird species at 50 closed-canopy and 50 treefall gap locations in the Bialowieza Forest in Poland, is presented.

Author: Fuller, Robert J.
Publisher: Cooper Ornithological Society
Publication Name: The Condor
Subject: Biological sciences
ISSN: 0010-5422
Year: 2000
Poland, Environmental aspects, Natural history, Bird populations, Bird migration, Muscicapidae, Flycatchers, Spatial behavior in animals, Animal spatial behavior, Forest dynamics, Old growth forests, Bialowieza, Poland

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Subjects list: Behavior, Birds, Wood warblers
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