We investigated this idea using a Neotropical population of the Blue-back Grassquit
(Volatinia jacarina, Aves: Thraupidae), a migratory and granivorous passerine (Sick 1997, Remsen et al.
Examples of avian species that were observed within anthropogenic habitats and either fed, roosted, or both within villages and farms include the smooth-billed ani (Crotophaga ani), common nighthawk (Chordeiles minor), white-collared swift (Streptoprocne zonaris), Pacific hornero (Furnarius cinnamomeus), lemon-rumped tanager (Ramphocelus icteronotus), swallow tanager (Tersina viridis), blue and white swallow (Notiochelidon cyanoleuca cyanoleuca), blue-black grassquit
(Volatinia jacarina), shiny cowbird (Molothrus bonariensis aequatorialis), turkey vulture (Cathartes aura), black vulture (Coragyps atratus), cattle egret (Bubulcus ibis), and a variety of members of the Tyrannidae family (flycatchers) and Troglodytidae (wrens).
Analyzing the sequence of DNA extracted from blood samples taken from 13 of 14 Darwin's finch species, the scientists found that the birds shared the same evolutionary source as that of the grassquit
, a dull-colored sparrow found widely in Central and South America.
15; Francisco 2006) and the Blue-black Grassquit
(Volatinia jacarina) (0.
Structural plumage coloration, male body size, and condition in the blue-black grassquit
flaveola) <40 40 (b) White-chinned thrush <40 40 (Turdus aurantius) (b) Jamaican elaenia <40 80 (Myiopagis cotta) (b) Common ground-dove <40 <40 (Columbina passerina) (b) Caribbean dove (Leptotila <40 <40 jamaicensis) (b) Black-faced grassquit
<40 <40 (Tiaris bicolor) (b) Jamaican vireo (Vireo <40 <40 modestus) (b) Manchester Parish Caribbean dove (Leptotila <40 <40 (site 1), Jamaica jamaicensis) (b) Manchester Parish Black-faced grassquit
<40 <40 (site 2), Jamaica (Tiaris bicolor) (b) Jamaican oriole (Icterus <40 160 leucopteryx) (b) White-eyed thrush <40 <40 (Turdus jamaicensis) (b) Orangequit (Euneornis <40 <40 campestris) (b) St.
Nestlings of the closely related Blue-black Grassquit
(Volatinia jacarina), remained in the nest for 10 days (Carvalho et al.
The IBP rate of the Pale-breasted Thrush might be higher, if our estimate is low, than that found for the neotropical Blue-black Grassquit
(Volatinia jacarina) (27.
They often associated in Oventeni with large groups of primarily Blue-black Grassquit
(Volatinia jacarina) in grassy or recently burned areas.
Lucia Black Finch (Melanospiza richardsoni), Lesser Antillean Bullfinch (Loxigilla noctis), Black-faced Grassquit
(Tiaris bicolor), Antillean Euphonia (Euphonia musica), Bananaquit (Coereba flaveola), and St.
Structural plumage coloration male body size, and condition in the Blue-black Grassquit
Migrant Prairie Warbler, American Redstart, and Ovenbird, and resident Pearly-eyed Thrasher, Yellow Warbler, Bananaquit, and Black-faced Grassquit
were positively affiliated with at least one plant species in dry forest.