| Titre : | Journal of Field Ornithology 74(1) - WIN 2003 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
S. A. Gill, Auteur
Using direct observations of Buff-breasted Wrens (Thryothorus leucotis), I examined timing and duration of egg laying, the behavior of females and males around the time of laying, and duetting and solo singing on laying and non-laying mornings. [...]
Article
T. E. Dean, Auteur ;
P. D. Vickery, Auteur
We documented Bachman's Sparrows (Aimophila aestivalis) entering natural burrows on six different occasions on a dry prairie in central Florida. Use of burrows was apparently an attempt to escape potential predators. Although Bachman's Sparrows [...]
Article
S. N. G. Howell, Auteur ;
T. Gardali, Auteur
From 1980 to 2000, we mist-netted 2412 Allen's Hummingbirds (Selasphorus sasin) and 203 Rufous Hummingbirds (S. rufus) at a site in central coastal California. Adult Allen's occurred from late January to early August and juveniles from early Apr[...]
Article
Female Swamp Sparrows (Melospiza georgiana) give a loud series of chips as they leave their nest during incubation and brooding. I tested the efficacy of basing breeding population surveys on the nest departure call (NDC). For a subset of point-[...]
Article
C. V. Bolshakov, Auteur ;
V. N. Bulyuk, Auteur ;
A. Mukhin, Auteur ;
N. Chernetsov, Auteur
Body mass and fat reserves of Sedge Warblers (Acrocephalus schoenobaenus) on nocturnal departure and arrival were studied by two methods (capture in high nets and playback of songs) on the Courish Spit (Eastern Baltic, Russia) in spring 1998-200[...]
Article
J. Pitocchelli, Auteur ;
J. E. Piatt, Auteur ;
H. R. Carter, Auteur
We studied molt and size variation in Whiskered Auklets collected at sea in August from the Aleutian Islands in 1992 and 1993. We evaluated size differences from external and skeletal measurements. Adults were molting extensively in August, indi[...]
Article
M. B. Wunder, Auteur ;
F. L. Knopf, Auteur
We surveyed Mountain Plovers (Charadrius montanus) wintering in the Imperial Valley of California in January 2001, and also recorded the types of crop fields used by plovers in this agricultural landscape. We tallied 4037 plovers in 36 flocks ra[...]
Article
J. P. Isacch, Auteur ;
M. S. Bo, Auteur ;
N. O. Maceira, Auteur ;
M. R. Demaria, Auteur ;
S. Peluc, Auteur
We studied the species composition and seasonality of the bird community in the semi-arid west pampa grasslands of Argentina. The study was carried out in natural grasslands with and without a history of cattle grazing ("mixed grassland" and "so[...]
Article
T. J. O'Connell, Auteur ;
R. A. Beck, Auteur
We studied seven mixed-species colonies of terns and skimmers on the Virginia barrier islands in 1990 and 1991 to determine the effect of gull predation on nesting success. We compared intensity of gull predation and other agents of egg or chick[...]
Article
Current estimates of annual survival, an important process affecting population dynamics, are lacking for breeding-waterfowl populations in Washington. I used hunting-season recoveries in conjunction with band-recovery models (program MARK) to e[...]
Article
G. E. Crozier, Auteur ;
D. E. Gawlik, Auteur
The ability to attract wading birds to a specific location is an important tool for wading bird research. We examined the effectiveness of three commercially available decoy types in attracting free-ranging wading birds to a precise location. Th[...]
Article
M. Takagi, Auteur
Philopatry and habitat selection were examined for migratory populations of the two sympatric shrike species, the Bull-headed (Lanius bucephalus) and Brown (L. cristatus) shrikes in northern Japan between 1992 and 1997. Although 18% of banded Bu[...]
Article
W. H. Deng, Auteur ;
G. M. Zheng, Auteur ;
W. Gao, Auteur
We compared the nesting success of the Meadow Bunting (Embriza cioides) along different kinds of habitat edges at three sites (166 total nests) in northeast China from 1998 to 2000. Nest loss rates along abrupt edges were more than twice as high[...]
