| Titre : | Journal of Field Ornithology 72(2) - SPR 2001 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
F. Vezina, Auteur ;
D. Charlebois, Auteur ;
D. W. Thomas, Auteur
Studies on small wintering birds often monitor body mass variation over days or seasons. Typically, birds are weighed manually or data are obtained using an electronic balance which displays the bird's mass during visits to a feeder. The problem[...]
Article
D. G. McMaster, Auteur ;
S. K. Davis, Auteur
In the early 1990s Agriculture Canada's Permanent Cover Program (PCP) converted over 445,000 ha of cropland to perennial vegetative cover. The wildlife benefits of the PCP have not been the subject of previous research. We conducted grassland bi[...]
Article
J. R. Jehl, Auteur
Gadwalls (Anas strepera) hatched at Mono Lake, California, exhibit two types of severe foot damage, one manifested by the formation of hard white nodules on the plantar surface, the other by necrosis, which results in deformed and eroded webs an[...]
Article
K. S. Berg, Auteur
The little-known Pale-mandibled Aracari is endemic to wet forests of western Ecuador. I quantified population density, feeding ecology, reproductive biology, and vocalizations. Population density in the study area was one group (nine individuals[...]
Article
R. E. Kenward, Auteur ;
R. H. Pfeffer, Auteur ;
M. A. Al-Bowardi, Auteur ;
N. C. Fox, Auteur ;
K. E. Riddle, Auteur ;
E. A. Bragin, Auteur ;
A. Levin, Auteur ;
S. S. Walls, Auteur ;
K. H. Hodder, Auteur
Backpack radio-tags can be used to monitor survival of raptors for several years after fledging, but may reduce survival if a poor fit results from subjective judgments. We present an attachment method that can use bird measurements to predict h[...]
Article
J. Doresky, Auteur ;
K. Morgan, Auteur ;
L. Ragsdale, Auteur ;
H. Townsend, Auteur ;
M. Barron, Auteur ;
M. West, Auteur
Although significant numbers of the federally endangered Red-cockaded Woodpecker (Picoides borealis) occur at military installations, little research has been initiated to determine what effects military activities have on the birds. From 1994-1[...]
Article
R. B. Siegel, Auteur ;
D. F. DeSante, Auteur ;
M. P. Nott, Auteur
We conducted point counts three dines during the 1994 breeding season at
Article
G. A. Gale, Auteur ;
J. A. DeCecco, Auteur ;
M. R. Marshall, Auteur ;
W. R. McClain, Auteur ;
R. J. Cooper, Auteur
Although the gypsy moth (Lymantria dispar) is a significant insect pest of eastern deciduous forests in the United States, relatively little is known about its effects on forest bird communities. We used six Breeding Bird Census sites from Conne[...]
Article
A. Leme, Auteur
The foraging behavior and resource use of four syntopic species of antwrens (Drymophila) was studied at Intervales State Park (24 degrees 17'S, 48 degrees 25'W) in the southeastern Brazilian Atlantic forest. Ochre-rumped Antbirds (D. ochropyga) [...]
Article
S. Menu, Auteur ;
G. Gauthier, Auteur ;
A. Reed, Auteur
We studied survival immediately after banding of Greater Snow Geese (Chen caerulescens atlantica) captured in mass banding drives on Bylot Island (Nunavut, Canada) during the late brood-rearing period. Shortly after release, the banding sites an[...]
Article
G. J. Wiles, Auteur ;
P. J. Conry, Auteur
We gathered data on the habitat and general characteristics of 24 nest mounds (14 active, 10 inactive) of Micronesian Megapodes (Megapodius laperouse senex) in the Palau Islands of western Micronesia. Most (92%) mounds were found in strand fores[...]
Article
D. J. Watt, Auteur
Analysis of a banded population of American Goldfinches (Carduelis tristis) showed that frequencies of recaptured birds wearing at least one of nine different colored leg bands did not differ from expected frequencies over a 6-yr period. In a si[...]
