| Titre : | Journal of Field Ornithology 75(4) - FAL 2004 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
J. A. Cox, Auteur ;
S. R. Jones, Auteur
We used a recorded song of the Bachman's Sparrow (Aimophila aestivalis) to determine whether recorded vocalizations improved detection of this secretive species in winter. Surveys were conducted in the Red Hills region of northern Florida and so[...]
Article
D. Shutler, Auteur ;
D. J. T. Hussell, Auteur ;
A. G. Horn, Auteur ;
M. L. Leonard, Auteur ;
R. W. Shutler, Auteur ;
D. Lepage, Auteur
We provide data on three instances where Tree Swallows (Tacbycineta bicolor) that fledged from the same nest (broodmates) eventually bred together in subsequent years. Two instances were detected in Ontario and a third was detected in Nova Scoti[...]
Article
G. Chavez-Leon, Auteur ;
A. Velazquez, Auteur
The Long-tailed Wood-Partridge (Dendrortyx macroura) is a species endemic to Mexico, inhabiting dense coniferous forests of the Trans-Mexican Volcanic Belt and the Sierra Madre del Sur, of which little is known about its ecology and conservation[...]
Article
C. Randler, Auteur
I examined vigilance behaviour of Mallards (Anas platyrhynchos) feeding in flocks with Greylag Geese (Anser anser) on stubble-fields in northern Germany. I measured scans/min and total scan duration, and I calculated mean scan duration. There wa[...]
Article
M. M. Stake, Auteur ;
J. Faaborg, Auteur ;
F. R. Thompson, Auteur
We monitored 67 Golden-cheeked Warbler (Dendroica chrysoparia) nests with infrared video cameras and time-lapse recorders to identify predators. Rat snakes (Elaphe spp.) were the most frequent predators, depredating 12 nests and capturing three [...]
Article
M. P. Lombardo, Auteur ;
M. L. Green, Auteur ;
P. A. Thorpe, Auteur ;
M. R. Czarnowski, Auteur ;
H. W. Power, Auteur
Male Tree Swallows (Tachycineta bicolor) face intense sperm competition because mated pairs copulate frequently, extra-pair copulations are common, and females store sperm. We examined the effects of repeated sampling on the characteristics of T[...]
Article
A. P. Woolnough, Auteur ;
W. E. Kirkpatrick, Auteur ;
T. J. Lowe, Auteur ;
K. Rose, Auteur
A captive study was conducted to determine the most appropriate method for attaching radio transmitters to a medium-sized (20-100 g) passerine, the European Starling (Sturnus vulgaris). Using mock transmitters, three methods of attachment were t[...]
Article
H. C. Mueller, Auteur ;
D. D. Berger, Auteur ;
N. S. Mueller, Auteur ;
W. Robichaud, Auteur ;
J. L. Kaspar, Auteur
We measured wing chord, tail length and mass and estimated levels of subcutaneous fat deposits of Sharp-shinned Hawks (Accipiter striatus) trapped at Cedar Grove, Wisconsin. Wing chord, tail length, and mass all showed a sudden increase beginnin[...]
Article
R. A. Rounds, Auteur ;
R. M. Erwin, Auteur ;
J. H. Porter, Auteur
Rising sea levels in the mid-Atlantic region pose a long-term threat to marshes and their avian inhabitants. The Gull-billed Tern (Sterna nilotica), Common Tern (S. hirundo), Black Skimmer (Rynchops niger), and American Oystercatcher (Haematopus[...]
Article
American Avocers (Recurvirostra americana) and Black-necked Stilts (Himantopus mexicanus) are large ground-nesting shorebirds whose eggs and flightless chicks are exposed to a variety of predators during a period of approximately two months. Par[...]
Article
E. T. Mezquida, Auteur ;
L. Quse, Auteur ;
L. Marone, Auteur
We examined nest predation rates at artificial nests in two contrasting habitats (open woodland and shrubland) inside the Reserve of Nacunan, west-central Argentina and in open woodlands within the reserve and a nearby grazed area, to assess whe[...]
Article
D. A. Butler, Auteur ;
W. E. Palmer, Auteur ;
S. D. Dowell, Auteur
Identifying the arthropods present in the digestive tracts of human-imprinted gamebird chicks after foraging may provide a more biologically relevant assessment of arthropod availability in brood-rearing habitats. It may also provide information[...]
