| Titre : | Journal of Field Ornithology 73(1) - Winter, 2002 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
It has been suggested that the cohesion of mixed species flocks relies heavily on conspicuous species that act as an attractive nucleus for other birds. I evaluated the role of the White-flanked Antwren as a nuclear species in mixed-species floc[...]
Article
Distribution and abundance of Snowy Plovers in eastern North America, the Caribbean, and the Bahamas
L. R. Gorman, Auteur ;
S. M. Haig, Auteur
Snowy Plovers (Charadrius alexandrinus) are small, partially migrant shorebirds that are broadly distributed across North America. Snowy Plover distribution west of the Rocky Mountains has been well described. However, distribution and abundance[...]
Article
It has been suggested that the cohesion of mixed species flocks relies heavily on conspicuous species that act as an attractive nucleus for other birds. I evaluated the role of the White-flanked Antwren as a nuclear species in mixed-species floc[...]
Article
D. W. Podlesak, Auteur ;
C. R. Blem, Auteur
The ability to accurately determine age of nestlings is useful in studies of reproductive performance of small birds. Because of a resurgence of interest in nest-box studies of reproductive performance of Prothonotary Warblers (Protonotaria citr[...]
Article
R. W. Pagen, Auteur ;
F. R. Thompson, Auteur ;
D. E. Burhans, Auteur
We compared the results of point-count and mist-net surveys during the breeding and post-breeding seasons in four Missouri Ozark habitats: mature upland forest, mature riparian forest, 9- to 10-yr-old upland forest and 3- to 4-yr-old upland fore[...]
Article
Golden Eagles (Aquila chrysaetos) were banded as nestlings, migrants, wintering birds, and resident breeders in three states of the U.S. Rocky Mountain West between June 1973 and January 1999. To January 2000, 6.2% of 325 eagles banded had been [...]
Article
K. R. Van Why, Auteur ;
C. K. Williams, Auteur ;
R. D. Applegate, Auteur ;
B. E. Flock, Auteur
We describe a lightweight, portable, and inexpensive field aviary that was designed for observing Northern Bobwhite (Colinus virginianus) vigilance and feeding behavior. The general construction details of this aviary are easily modified to acco[...]
Article
R. P. Larkin, Auteur ;
W. R. Evans, Auteur ;
R. H. Diehl, Auteur
Recording flight calls of migrating birds with one or more microphones provides information on identity of some birds aloft over each microphone and on the time course of their migration, or at least their calling. Doppler surveillance radar obs[...]
Article
Seasonal variations in occurrence of the Blue-and-yellow (Ara ararauna), Red-and-green (A. chloroptera), and Scarlet (A. macao) Macaw were evaluated in the floodplain rainforest of the Manu Biosphere Reserve, southeast Peru. One-hour surveys of [...]
Article
The number of visits parents make to their nest during chick rearing is a commonly used measure of the amount of food delivered to nestlings and an index of the quality of parental care. Use of the number of visits for these purposes assumes tha[...]
Article
J. Herranz, Auteur ;
M. Yanes, Auteur ;
F. Suarez, Auteur
We examined predation rates on natural and artificial Common Wood-Pigeon (Columba palumbus) nests with camouflaged cameras, with uncamouflaged cameras, and without cameras in Villatobas, Central Spain. Total daily nest survival probability was c[...]
Article
M. F. Willson, Auteur ;
B. H. Marston, Auteur
We observed foraging behavior and success of gulls (Larus spp.) at spawning runs of eulachon (Thaleichthyes pacificus, Osmeridae) in Berners Bay, Alaska, in spring 1996-1998. Adults foraged more effectively (greater than or equal to56% of dives [...]
Article
The Bridled White-eve is a little known species endemic to the Mariana Islands in die tropical Pacific. Based on observations of social behavior and on movements of color-banded individuals, I evaluated which of four flocking strategies the Brid[...]
Article
J. Bertran, Auteur ;
A. Margalida, Auteur
Griffon Vultures (Gyps fulvus) are responsible for most eases of usurpation of nests of Bearded Vultures (Gypaetus barbatus). However, little is known about how both species interact during reproduction. We studied territorial behaviour during t[...]
Article
J. J. Weicker, Auteur ;
K. Winker, Auteur
Using museum specimens from Mexico, Canada, and the western United States, we examined sexual dimorphism in the Wilson's Warbler (Wilsonia pusilla), a Nearctic-Neotropic migrant (Passeriformes: Parulidae). On average, males had longer tails, win[...]
Article
S. M. Reader, Auteur ;
D. Nover, Auteur ;
L. Lefebvre, Auteur
Lesser Antillean Bullfinches Loxigilla noctis were observed opening packets of sugar on the grounds of a hotel on the west coast of Barbados. We presented closed sugar packets at 40 sites in 10 areas on the west coast, near the site where openin[...]
Article
C. J. Dove, Auteur ;
M. Heacker, Auteur
An Egyptian Nightjar (Caprimulgus aegyptius) specimen was salvaged on 5 September 2000 from the landing gear of a DC-10 airliner that had landed at Langley Air Force Base, Virginia. The bird likely collided with the plane during its stop the pre[...]
