Tag: all of Dendroica

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 […]

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 […]

JUVENILE GRAY JAY PREYS UPON MAGNOLIA WARBLER

Magnolia Warbler (Dendroica magnolia) Science Article 1 abstract A juvenile Gray Jay (Perisoreus canadensis) was observed to capture, kill, and eata healthy juvenile Magnolia Warbler (Dendroica magnolia), demonstrating that Gray Jaysdepredate free-flying birds in addition to nestlings and dead adults. Predation of birds, which was manifested in a recently independent bird, may be a regular […]

Interspecific song learning in a wild Chestnut-sided Warbler.

Chestnut-sided Warbler (Dendroica pensylvanica) Science Article 2 abstract Vocal learning involving imitation is the prevalent mode of song development in songbirds. The evidence for vocal learning both from experimental studies and from local song variants shared among neighbors (dialects) indicates that songbirds generally learn from their own species, and that a genetically determined signal recognition […]

EXTRAPAIR PATERNITY INCREASES VARIABILITY INMALE REPRODUCTIVE SUCCESS IN THE CHESTNUT-SIDEDWARBLER (DENDROICA PENSYLVANICA), A SOCIALLYMONOGAMOUS SONGBIRD

Chestnut-sided Warbler (Dendroica pensylvanica) Science Article 1 abstract A monogamous mating system that includes extrapair fertilization can potentially generate higher variability in male reproductive success than monogamy without extrapair fertilization. That increased variability could provide a correspondingly higher opportunity for sexual selection and, thus, for the origin and persistence of sexual dimorphism in monogamous species. […]

DEMOGRAPHIC AND POPULATION RESPONSES OF CAPE MAYWARBLERS WINTERING IN MULTIPLE HABITATS

Cape May Warbler (Dendroica tigrina) Science Article 2 abstract Wintering Cape May Warblers (Dendroica tigrina) were studied in three habitats along an altitudinal gradient in the Dominican Republic. Results of this study are some of the first to link both population responses and individual condition of nonbreeding birds to prevailing ecological conditions across divergent habitats. […]

The Cape May Warbler (Dendroica tigrina) as an Abundant Autumnal Migrant and as a Destructive Grape Juice Consumer at Berwyn, Pa.

Cape May Warbler (Dendroica tigrina) Science Article 1 abstract For several years, previous to the crushing sleet of the past winter, a pie cherry tree crowned with the foliage of a fugitive Clinton grapevine overhung my shop platform; and a thirty foot pine bending under the weight of several Niagara grapevine runners, stood close to […]