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Full-Text Articles in Life Sciences
Habitat Characteristics Influencing Sandhill Crane Nest Site Selection, Anne E. Lacy, Su Liying
Habitat Characteristics Influencing Sandhill Crane Nest Site Selection, Anne E. Lacy, Su Liying
Proceedings of the North American Crane Workshop
The breeding population of greater Sandhill cranes (Grus canadensis tabida) in Wisconsin has greatly increased since the population was nearly extirpated in the mid-1930’s (Henika 1936). The International Crane Foundation (ICF) has been studying these birds for over 10 years in an area with one of the highest density of breeding cranes in the Midwest; we have calculated a nesting density of over 5 pairs/km2 (ICF unpublished data). Prior to this study, little was known about the habitat characteristics that may be influencing nest site selection. We conducted nest surveys by helicopter during the last week of April …
Additions To The Breeding Avifauna Of The Lower Rio Grande Valley Of Texas, Timothy Brush
Additions To The Breeding Avifauna Of The Lower Rio Grande Valley Of Texas, Timothy Brush
Biology Faculty Publications and Presentations
The breeding avifauna of the Lower Rio Grande Valley (LRGV) of Texas has experienced many changes during the 20th century, primarily because of declines in native habitats due to land being converted to agriculture and urban habitats. This paper summarizes changes in breeding avifauna from 2003–2007 in the area. Breeding has been confi rmed for Cooper’s Hawk (Accipiter cooperii), Eurasian Collared-Dove (Streptopelia decaocto), and Mangrove Yellow Warbler (Dendroica petechia oraria) for the fi rst time, and for Gray-crowned Yellowthroat (Geothlypis poliocephala) and Ferruginous Pygmy-Owl (Glaucidium brasilianum) after periods of apparent absence. Short-tailed Hawk (Buteo brachyurus) is a possible breeder, based …
Avifaunistische Beobachtungen Im Westchentej, Ulrich Zöphel, Jochen Schulenberg, Wolf-Dieter Busching, Ingolf Todte
Avifaunistische Beobachtungen Im Westchentej, Ulrich Zöphel, Jochen Schulenberg, Wolf-Dieter Busching, Ingolf Todte
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
This paper reports the results of bird observations at four study sites with many different habitats in the western Chentej-mountains (forest steppe, taiga) at the end of the spring-migration and the beginning of the breeding time. Altogether 134 bird species were observed, about 107 of which are probably breeding birds. Additional birds were caught using 6 mist-nets. In this way 98 birds of 21 species were caught, measured, and ringed. Furthermore feathers have been collected (molting feathers and near two breeding places of Accipiter nisus).
The bird fauna of the larch forests shows a high species richness (108 species), …