Category Archive: North America

Dec 31 2011

parental feeding of nestling yellow warblers in relation to brood size and prey availability

Yellow Warbler (Dendroica petechia) Science Article 12 abstract The feeding by adult Yellow Warblers (Dendroicap etechia) of nestlings in broods of 3, 4, or 5 young was studied during two breeding seasons on the forested dune ridge near Delta, Manitoba. Broods of 2-day-old young were selectively fed geometrid larvae by the adults, and broods of …

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Dec 31 2011

YELLOW WARBLER

Yellow Warbler (Dendroica petechia) Science Article 8 abstract Across its vast range, the Yellow Warbler is a highly variable species. Forty-threesubspecies are currently recognized, and are treated geographically as three groups. The aestivagroup breeds throughout much of the U.S. and Canada, from northern Alaska, northern Yukon,northwestern and central Mackenzie, northern Saskatchewan, northern Manitoba, northernOntario, central …

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Dec 31 2011

Interspecific Aggression By Yellow Warblers In A Sun Coffee Plantation

Yellow Warbler (Dendroica petechia) Science Article 5 abstract Non-breeding habitat use is mediated infrequently by interspecific aggression in migratory birds. Such aggression occurs most commonly among birds exploiting rich resource patches such as nectar, fruit, or other similar resources (Greenberg et al. 1994). Interspecificterritoriality and dominance is less commonly noted among insectivorous species (Rappole and …

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Dec 31 2011

Speciation and rapid phenotypic differentiation in theyellow-rumped warblerDendroica coronatacomplex

Yellow Warbler (Dendroica petechia) Science Article 7 abstract The relative importance of the Pleistocene glacial cycles in driving avian speciationremains controversial, partly because species limits in many groups remain poorly understood,and because current taxonomic designations are often based on phenotypic characteristicsof uncertain phylogenetic significance. We use mtDNA sequence data to examinepatterns of genetic variation, sequence …

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Dec 31 2011

Do female Yellow Warblers (Dendroica petechia) incubatewhile in the nest during the laying period?

Yellow Warbler (Dendroica petechia) Science Article 2 abstract Although some passerine species heat their eggs during the brief periods of nest attentiveness early in the laying period (e.g., Haftorn 1981), egg temperature data are not available for Yellow Warblers (Dendroica petechia). As part of a larger study on the effect of Brown-headed Cowbird (Molothrus ater) …

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Dec 31 2011

Male plumage, paternal care and reproductive success in yellow warblers,Dendroica petechia

Yellow Warbler (Dendroica petechia) Science Article 13 abstract Using morphological or behavioural features correlated with paternal care, females can, priorto mating, assess the potential parental contribution of males. As a first step in a study of female matechoice in yellow warblers, this study was designed to examine the importance of paternal care by malesof diVering …

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Dec 31 2011

Breeding habitat use by sympatric and allopatric populations of Wilson’s Warblers and Yellow Warblers

Yellow Warbler (Dendroica petechia) Science Article 15 abstract We studied Wilson’s Warbler (Wilsonia pusilla) and Yellow Warbler (Dendroica petechia) habitat use in allopatric and sympatric populations in the Rocky Mountains of northern Colorado and southeastern Wyoming in order to better understand the different habitat needs and interactions of these two species. Janet M. Ruth and …

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Dec 31 2011

Subspecific Identification of the Willet Catoptrophorus semipalmatus

Willet (Catoptrophorus semipalmatus) Science Article 3 abstract The Willet is a familiar shorebird to many birders around temperate regions of North, Central, and South America. Its large size, drab plumage, and flashy wing pattern make it relatively straightforward to identify Michael O’Brien, BIRDING MAY/JUNE 2 0 0 6 Download article download full text (pdf)

Dec 31 2011

Predator avoidance behaviour of a solitary Willet attacked by a Peregrine Falcon

Willet (Catoptrophorus semipalmatus) Science Article 2 abstract During the non-breeding season, Willets Catoptrophorus semipalmatus use a variety of tactics to avoid predators and have been reported to take flight, submerge themselves inwater, and hide in or near marsh vegetation JOSEPH B. BUCHANAN, Bulletin 104 August 2004 Download article download full text (pdf)

Dec 31 2011

Social Organization In A Nesting Population Of Eastern Willets (Catoptrophorus Semipalmatus)

Willet (Catoptrophorus semipalmatus) Science Article 1 abstract The breeding ecology of eastern Willets (Catoptrophorus semipalmatus) was studied over a 3-yr period in a salt marsh on the Atlantic coast of Virginia. During the study,171 adults were color-marked MARSHALL A. HOWE, The Auk 99: 88-102. January 1982 Download article download full text (pdf)

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