In 1902 this Thrush was called the Dark Thrush or the Dusky Thrush, it said: In Asia this Thrush has a wide range: and its true habitat is there; for it is only known within the limits of the western Palaearctic Region as a rare and occasional straggler. According to Professor Schlegel it has once […]
Category: Passeriformes
Vintage plate of Scaly Thrush (Zoothera dauma)
In 1902 this Thrush was called Whites Thrush, Turdus Varius, it said: Although an inhabitant of Eastern Asia, this Thrush has frequently straggled to various parts of Europe, and as far west even as Great Britain, where it has been captured on at least nine occasions. The first recorded British-killed specimen appears to be that […]
Vintage plate Fieldfare (Turdus pilaris)
In 1902: The breeding-habits of the Fieldfare are only to be observed in the north and east of Europe ; for in every other part of the continent the bird is scarcely ever known as other than a winter visitant. It is fond of the neighbourhood of cultivated land, birch-woods, or those wherein birch and […]
Vintage plate Redwing (Turdus iliacus)
In 1902: The Redwing inhabits during the summer season the far north, but so soon as the cold weather sets in migrates southward, spreading over the whole of Europe, returning again to its northern haunts in the spring. It has been met with as far west as Greenland where it has twice occurred. The Redwing […]
Vintage plate of mistle thrush
From 1902: This well-known species is distributed over the entire Paltearctic Region, although of very rare occurrence in the extreme eastern portion. In Western Europe it is migratory to a very great extent, although in some countries a resident species. When on the ground, and in the attitude of observation, it droops its wings a […]
Whitish House Sparrow (Passer Domesticus)
During a animal park visit I shot this photo of a whitish female House Sparrow. The one in the back is a normal colored female. They are free flying birds living of the food spoils in the zoo. Question is, is it a normal Sparrow with abnormal feather coloring or it is a hybrid. The […]
Food abundance and parental care in yellow warblers
Yellow Warbler (Dendroica petechia) Science Article 1 abstract Emlen and Oring (1977) suggested that monogamy in birds is maintained because of the need for strict biparental care. A corollary of their suggestion is that paternal care should decrease under conditions of high food abundance. An alternative is that paternal care would increase if males take […]
Extra-pair mating, male plumage coloration andsexual selection in yellow warblers (Dendroica petechia)
Yellow Warbler (Dendroica petechia) Science Article 14 abstract Extra-pair mating has been proposed as a source of sexual selection responsible for secondary sexual traitsthat are common among socially monogamous birds, although supporting evidence is scant. In the socially monogamous yellow warbler, males are larger than females, and unlike females, have extensivereddish streaking on their breasts. […]
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 […]
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 […]