Yellow-headed Blackbird (Xanthocephalus xanthocephalus) Science Article 3 abstract Red-winged blackbirds (Agelaius phoeniceus) and yellow-headed blackbirds (Xanthocephalus xanthocephalus) are abundant breeding birds on the playa lakes of the Panhandle of Texas. Earlier studies have described the foods of nestling icterids in areas supporting wetlands undisturbed by agriculture (Willson 1966, Robertson 1973, Orians and Hom 1969), but […]
Category: Passeriformes
Yellow-headed Blackbird account
Yellow-headed Blackbird (Xanthocephalus xanthocephalus) Science Article 4 abstract Currently considered a Bird Species of Special Concern (breeding), priority 3. Not included on previous lists (Remsen 1978, CDFG 1992). Studies of Western Birds 1:444-450, 2008, Shuford, W. D., and Gardali, T Download article download full text (pdf)
NOTES ON THE LIFE HISTORY OF THE YELLOW-BREASTED FLYCATCHER IN SURINAM
Yellow-breasted Flycatcher (Tolmomyias flaviventris) Science Article 1 abstract In Surinam, the Yellow-breasted Flycatcher inhabits tall mangroves and shade trees in the coffee plantations in the coastal plain. It feeds on small insects plucked in flight from among the foliage. The call is a shrill and high pitched tchee-ee. A display consisting of slow waving movements […]
Das Vorkommen des Gelbbrauen-LaubsangersPhylloscopus inornatus in Deutschland
Yellow-browed Warbler (Phylloscopus inornatus) Science Article 2 abstract This paper deals with the spatial and temporal pattern of occurrence of Yellow-browed Warbler in Germany. The first record goes back to 1845, when a female was trapped in late October near Berlin Thorsten Kruger und Jochen Dierschke, VOGELWELT 125: 41 – 52 (2004) Download article download […]
Hidden leks in the Yellow-browed Warbler Phylloscopus inornatus? -Investigations from the Khan Khentey reserve (Mongolia)
Yellow-browed Warbler (Phylloscopus inornatus) Science Article 1 abstract The breeding biology of the Yellow-browed Warbler Phylloscopus inornatus islargely unknown. Recently the species was found to breed in clusters and somehypotheses on the function of aggregated breeding sites have been proposed.To obtain new insights, two clusters of Yellow-browed Warblers were observedfrom May to July 2003 in […]
THE BREEDING CYCLE OF THE YELLOW-BELLIED SEEDEATER IN PANAMA
Yellow-bellied Seedeater (Sporophila nigricollis) Science Article 1 abstract This report on the Yellow-bellied Seedeater (Sporophila nigricollis) is part of a fiveyearstudy of the life histories of some common tropical birds of the Panama CanalZone. The species is widely distributed in the tropics and occurs in a variety of habitatsover a great range of altitude. On […]
Genetically confirmed interbreeding between western Bonelli’s warbler ( Phylloscopus bonelli ) and wood warbler ( P. sibilatrix )
Wood Warbler (Phylloscopus sibilatrix) Science Article 1 abstract During May and June 2003, a mixed breeding pair consisting of a male western Bonelli’s warbler (Phylloscopus bonelli) and a female wood warbler (P. sibilatrix) successfully raised six young in a broad-leafed forest near Junkerath, western Germany, an area far outside the regular breeding range of P. […]
Reproductive success of the Woodchat Shrike (Lanius senator) in Western Bulgaria
Woodchat Shrike (Lanius senator) Science Article 1 abstract The Woodchat Shrike (Lanius senator) is a passerine species, which is considered to have un- dergone a large decline throughout its breeding range in Europe. Its distribution has retracted towards the south and it was recently classified as ‘Vulnerable’ (Tucker et al. 1994, Lefranc 1997). In spite […]
Notes on Icterus nigrogularis and I. chrysocephalus in Surinam
Yellow Oriole (Icterus nigrogularis) Science Article 1 abstract In his interesting and important paper,
Evidence for cryptic northern refugiaamong high- and temperate-latitude species in Beringia
Winter Wren (Troglodytes hiemalis) Science Article 3 abstract Stewart and Dalen (2008) argue that only temperate species were locked incryptic northern refugia during Pleistocene glacial cycles, while species presently found athigh latitudes had much wider distributions during glaciations. Christin L. Pruett & Kevin Winker, Climatic Change, 2007 Download article download full text (pdf)