Category: science article

yellow warbler (dendroica petechia) breeding biology and parasitism by the shiny cowbird (molothrus bonariensis) inboqueron, puerto rico

Yellow Warbler (Dendroica petechia) Science Article 6 abstract Aspects of the breeding biology of the Yellow Warbler (Dendroica petechia) and ShinyCowbird (Molothrus bonariensis) parasitism were studied in Boqueron, Puerto Rico from 2001 to 2002.Fifty-seven percent (n = 12) of warbler nests were parasitized. Survival of parasitized nests was lowerthan non-parasitized nests. Thirty-four percent of nests […]

Adoption of yellow warbler nestlings by song sparrows

Yellow Warbler (Dendroica petechia) Science Article 3 abstract Although interspecific brood adoption has been reported in several species of birds, theprocess by which it occurs has seldom been reported. We observed a pair of Song Sparrows (Melospiza melodia) that adopted a brood of Yellow Warblers (Dendroica petechia) and, gradually, over several days, took over the […]

Cuckoldry and lack of parentage-dependent paternal care in yellow warblers:a cost-benefit approach

Yellow Warbler (Dendroica petechia) Science Article 10 abstract Theory suggests that a male strategy of reducing parental care in response to reducedparentage should evolve only under certain conditions. Expected paternity in subsequent matings ispredicted to be primary in effect, because it determines whether there is a future benefit to compensatemales for the cost of reduced […]

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 […]

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 […]

Yellow Warbler nests: building materials and cowbirdparasitism

Yellow Warbler (Dendroica petechia) Science Article 4 abstract Nests are traditionally defined as receptacles in which to house eggs and chicks; however, for the Yellow Warbler (Dendroica petechia), nests may have additional biological significance, especially with respect to Brown-headed Cowbird (Molothrus ater) parasitism. Michelle Mico, UFS (Delta Marsh) Annual Report, Vol. 30, 1995 Download article […]

Notes on the Yellow Warbler in Surinam.

Yellow Warbler (Dendroica petechia) Science Article 9 abstract The Yellow Warbler (Dendroica petechia) is a common winter visitor in Surinam. According to Zimmer (Amer. Mus.Novit. No. 1428, 1949: 5), only the race aestiva has been taken there, but the race brewsteri probably also occurst here since it has been found in both British and French […]

Autumn stopover ecology of the BlackpollWarbler (Dendroica striata) in thorn scrub forestof the Dominican Republic

White-faced Whitestart (Myioborus albifacies) Science Article 1 abstract We used mist-netting, color-banding, resighting, and behavioral observations to study the autumn stopoverecology of migrating Blackpoll Warblers (Dendroica striata) in coastal thorn scrub forest in the area of Cabo Rojo,Pedernales Province, Dominican Republic. Blackpoll Warblers were the most abundant migrant present in this habitatthroughout most of October […]

transoceanic migration of the blackpoll warbler:summary of scientific evidence and response tocriticisms by murray

White-faced Whitestart (Myioborus albifacies) Science Article 2 abstract The hypothesis that Blackpoll Warblers (Dendroica striata) make transoceanicflights in autumn from the northeastern U.S. and southeastern Canada to South Americahas been proposed or supported in more than 25 papers by many authors, using manytechniques.M urray (1989; unpubl.) has criticized this hypothesis, but cited only a few […]

Female Site Fidelity And Polygyny In The Blackpoll Warbler (Dendroica Striata)

White-faced Whitestart (Myioborus albifacies) Science Article 3 abstract From 1980 to 1982, 8-30% of male Blackpoll Warblers (Dendroics atriata) studied on Kent Island, New Brunswick, were bigamous each year (2 = 16.8%). I tested whether differences in the quality of the breeding situation can give rise to polygynous matings. Five territory parameters and two male […]