| Titre : | Journal of Field Ornithology 76(4) - FAL 2005 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
M. P. Cirne, Auteur ;
G. M. Lopez-Iborra, Auteur
The Chestnut-capped Blackbird (Agelaius ruficapillus) is widely distributed in South America. where it breeds in a variety of natural and man-made habitats. We studied the nesting of this species during two breeding se;seasons in rice paddies of[...]
Article
A. Simon, Auteur ;
D. W. Thomas, Auteur ;
J. R. Speakman, Auteur ;
Jacques Blondel, Auteur ;
P. Perrer, Auteur ;
M. M. Lambrechts, Auteur
The nests of altricial bind species are host to a variety of nest ectoparasites that may develop high infestation levels and have a negative impact oil chick growth, hematocrit, metabolic capacity, and survival before or after fledging. IF ecrop[...]
Article
J. I. Smith, Auteur ;
M. D. Reynolds, Auteur ;
G. LeBuhn, Auteur
Over the past 20 yr Warbling Vireo (Vireo gilvus) populations have declined in California. We monitored Warbling Vireo nests in the high elevations of the northern Sierra Nevada in the Tahoe National Forest near Truckee, California. Nest survivo[...]
Article
W. Meissner, Auteur
Fifty-six Dunlins (Calidris alpina) that died accidentally at banding sites in Buck Bay (southern Baltic Sea), Poland, between 1998-2001 were sexed by dissection and measured. Measurements and sexes of these 32 females and 24 males were used to [...]
Article
C. B. Cooper, Auteur ;
J. Mills, Auteur
Recordings of temperature fluctuations in the nests of birds call be used to infer incubation behavior such as the frequency and duration of off-bouts. Until recently, collecting temperature recordings from a large number of nests was limited by[...]
Article
B. Sutter, Auteur ;
G. Ritchison, Auteur
Populations of Grasshopper Sparrows (Ammodramus savannarum) have been declining, and agricultural practices, such as grazing by domestic cattle (Bos taurus), are likely contributing factors. Grazing call alter the composition and structure of ve[...]
Article
J. V. Gorrell, Auteur ;
G. Ritchison, Auteur ;
E. S. Morton, Auteur
Long-term pair bonds and defense of territories year-round are common among tropical passerines. The boundaries of these territories tend to be stable, perhaps reflecting the need to defend an area that, regardless of conditions, provides suffic[...]
Article
A. K. Davis, Auteur
House Finches are being increasingly studied because of their variation in male plumage, evolving migration, and susceptibility to mycoplasmal conjunctiviris. Researchers traditionally use two methods for capturing House Finches: a walk-in hardw[...]
Article
Sibling competition selects nestlings to beg as quickly as possible when a stimulus in the nest entrance is presented. However, predation risk may select for nestlings to properly assess stimuli before begging, because nestlings chat beg to erro[...]
Article
J. P. DeLong, Auteur ;
S. W. Cox, Auteur ;
N. S. Cox, Auteur
We compared the migratory bird assemblage at a high-elevation site in central New Mexico (Capilla Peak in the Manzano Mountains) with the bird assemblage at a low-elevation riparian corridor site (Rio Grande Nature Center State Park in Albuquerq[...]
Article
M. A. Colwell, Auteur ;
C. B. Millett, Auteur ;
J. J. Meyer, Auteur ;
J. N. Hall, Auteur ;
S. J. Hurley, Auteur ;
S. E. McAllister, Auteur ;
A. N. Transou, Auteur ;
R. R. LeValley, Auteur
Poor reproductive Success has contributed to the decline and low population size of the federally listed Western Snowy Plover (Charadrius alexandrinus nivosus), especially where it breeds on coastal beaches used by humans for recreation. Front 2[...]
Article
L. M. Tranquilla, Auteur ;
N. R. Parker, Auteur ;
R. W. Bradley, Auteur ;
D. B. Lank, Auteur ;
E. A. Krebs, Auteur ;
L. Lougheed, Auteur ;
C. Lougheed, Auteur
We used four methods to compare the breeding chronologies of Marbled Murrelet at two sites at similar latitudes in British Columbia: Desolation Sound oil the mainland, inshore of the Strait of Georgia, and Clayoquot Sound oil the west coast of V[...]
Article
A. K. Davis, Auteur
The practice of obtaining white blood cell (leukocyte) profiles and heterophil/lymphocyre (H/L) ratios from avian blood smears has become increasingly popular to assess immune function in wild birds. I captured
Article
A. M. Dufty, Auteur ;
M. B. Crandall, Auteur
Many nestlings respond to alarm calls with anti-predator behavior, but their physiological responses to much calls are poorly understood. Alarm calls could stimulate increased secretion of corticosterone to mobilize energy reserves in anticipati[...]
