| Titre : | Wilson Journal of Ornithology (The) 127(4) - December, 2015 |
| Type de document : | Bulletin |
| Paru le : | 01/12/2015 |
Dépouillements
Article
Allison L. Lansverk, Auteur ;
Jean-Bernard Dogmo, Auteur ;
Justin G. Schuetz, Auteur ;
Christopher N. Balakrishnan, Auteur
ABSTRACT In the African brood parasitic finches (Viduidae), complex nestling mouth markings have evolved to mimic those of their estrildid finch hosts, reducing the chances of detection or discrimination by host parents. Most Vidua species are h[...]
Article
Kin-Lan Han, Auteur ;
James A. Cox, Auteur ;
Rebecca T. Kimball, Auteur
ABSTRACT Cooperatively breeding birds employ a variety of mating strategies, and we do not fully understand breeding group structure and the range of reproductive strategies used by group members. We examined group structure and parentage in a p[...]
Article
Adam P. A. Cardilini, Auteur ;
Michael A. Weston, Auteur ;
Peter Dann, Auteur ;
Craig D. H. Sherman, Auteur
ABSTRACT Sex roles during incubation vary dramatically in socially monogamous shorebirds. The ?incubator conspicuousness? hypothesis posits that, for biparentally incubating and sexually dimorphic birds, the more conspicuous sex should incubate [...]
Article
Andrew Farnsworth, Auteur ;
Frank A. La Sorte, Auteur ;
Marshall J. Iliff, Auteur
ABSTRACT Individuals from a diverse array of bird species sometimes occur well outside of their historic distributions. These vagrants, and their patterns of occurrence, may yield valuable insights regarding how birds respond to environmental ch[...]
Article
Peter A. Hosner, Auteur ;
Luis Cueto-Aparicio, Auteur ;
Gregorio Ferro-Meza, Auteur ;
Darwin Miranda, Auteur ;
Mark B. Robbins, Auteur
ABSTRACT The Andean Cordillera is notable for numerous centers of avian endemism along its great length. Yet, the narrow band of humid montane forest in eastern Ayacucho in south-central Peru is not known to harbor endemic bird species despite i[...]
Article
Peter A. Hosner, Auteur ;
Michael J. Andersen, Auteur ;
Mark B. Robbins, Auteur ;
Abraham Urbay-Tello, Auteur ;
Luis Cueto-Aparicio, Auteur ;
Karen Verde-Guerra, Auteur ;
Luis A. Sánchez-González, Auteur ;
Adolfo G. Navarro-Sigüenza, Auteur ;
Roger L. Boyd, Auteur ;
Jano Núñez, Auteur ;
Jorge Tiravanti, Auteur ;
Mariela Combe, Auteur ;
Hannah L. Owens, Auteur ;
A. Townsend Peterson, Auteur
ABSTRACT The sliver of humid tropical and montane forest on the east slope of the Andes in Ayacucho Department ranks among the least surveyed sectors of the Peruvian Andes. This mountainous region, along with adjacent Apurímac Department and wes[...]
Article
Renata D. Alquezar, Auteur ;
Ricardo B. Machado, Auteur
ABSTRACT In order to evaluate the possibility of using this method in the Brazilian Cerrado or other open vegetation areas, we compared the performance of point counts and autonomous recording units (ARU) for avian monitoring. From September to [...]
Article
ABSTRACT Many species of passerines are sexually monochromatic and thus sex cannot be determined based on plumage characteristics. Northern Waterthrushes (Parkesia noveboracensis) and Swainson?s Thrushes (Catharus ustulatus) are two such species[...]
Article
Erin E. Grabarczyk, Auteur ;
Gary Ritchison, Auteur
ABSTRACT The alarm calls of some birds are functionally referential and may provide nestlings with information about the threat posed by potential predators. However, few investigators have examined the responses of nestlings in cavity nests to [...]
Article
David W. Willey, Auteur ;
Charles Van Riper III, Auteur
ABSTRACT In large portions of their geographic range, Mexican Spotted Owls (Strix occidentalis lucida) roost in forest-dominated environments, but in some areas the owls use relatively arid rocky canyonlands. We measured habitat characteristics [...]
Article
Tim S. Bowden, Auteur ;
Jake M. Ferguson, Auteur ;
Rolla V. Ward, Auteur ;
Mark L. Taper, Auteur ;
David W. Willey, Auteur
ABSTRACT We studied breeding season home range characteristics and habitat of paired male Mexican Spotted Owls (Strix occidentalis lucida) below the south rim of Grand Canyon National Park from 2004?2005. Adult male owls (n = 5) were captured an[...]
Article
Jessica R. Eberhard, Auteur ;
Eduardo E. IñIgo-Elias, Auteur ;
Ernesto Enkerlin-Hoeflich, Auteur ;
E. Paùl Cun, Auteur
ABSTRACT The Military Macaw (Ara militaris) and the Great Green Macaw (A. ambiguus) are species whose close relationship is reflected in their morphological similarity as well as their geographic ranges. Military Macaws have a disjunct distribut[...]
Article
ABSTRACT Two captive pairs of Little Tinamou (Crypturellus soui) were studied to describe reproduction, development, and associated behaviors of this extremely cryptic forest dwelling species. Pairs were strongly territorial. Precopulatory court[...]
Article
Kathi L. Borgmann, Auteur ;
Courtney J. Conway, Auteur
ABSTRACT Selection of a breeding site is critical for many animals, especially for birds whose offspring are stationary during development. Thus, birds are often assumed to prefer concealed nest sites. However, 74% of studies (n = 106) that have[...]
Article
Egg carrying by female ducks has been reported for several species around the world. The first record of a male Wood Duck (Aix sponsa) carrying an egg herein is reported. This is only the second documented account of a male of any waterfowl spec[...]
Article
Barbara Frei, Auteur ;
James W. Fyles, Auteur ;
Jacob L. Berl, Auteur ;
John W. Edwards, Auteur ;
Joseph J. Nocera, Auteur
ABSTRACT The Red-headed Woodpecker (Melanerpes erythrocephalus) is a threatened bird species undergoing continued population declines across most of its range. Despite the conservation concern, there are few published studies on the species? fec[...]
Article
Ana Benítez-López, Auteur ;
Iván García-Egea, Auteur
ABSTRACT The distribution and frequency of color aberrations in wild birds is relatively poorly known. Here we report, for the first time, the observation of an aberrantly colored Pin-tailed Sandgrouse (Pterocles alchata), a threatened steppe bi[...]
Article
Clait E. Braun, Auteur ;
Roy E. Tomlinson, Auteur ;
Gregory T. Wann, Auteur
ABSTRACT Mourning Doves (Zenaida macroura) are common throughout much of North America and have been extensively studied. Seasonal changes in body mass are largely unreported and have not been examined in relation to replacement of primary fligh[...]
Article
First Description of the Nest of Whitehead's Spiderhunter (Arachnothera juliae, Aves: Nectariniidae)
Matthew L. Brady, Auteur ;
Ryan C. Burner, Auteur
ABSTRACT We describe the nest of the endemic Whitehead's Spiderhunter (Arachnothera juliae) from Mt. Mulu National Park, Sarawak, Malaysian Borneo, and compare it to those of the most closely related species, the Yellow-eared Spiderhunter (A. ch[...]
Article
Daniel J. Twedt, Auteur ;
George M. Linz, Auteur
ABSTRACT Yellow-headed Blackbirds (Xanthocephalus xanthocephalus) in central North Dakota undergo prebasic molt or prejuvenile molt during late summer. Nestling Yellow-headed Blackbirds initiate a complete prejuvenile molt, grow their primary an[...]
Article
ABSTRACT The Shiny Cowbird (Molothrus bonariensis) is a generalist brood parasite known to have parasitized more than 200 species, many of which are able to rear cowbird young. Here I provide new records of Shiny Cowbird parasitism on three glob[...]
Article
Rebecca E. Koch, Auteur ;
Geoffrey E. Hill, Auteur
ABSTRACT Males exhibit more colorful plumage than females in many bird species. Phylogenetic reconstructions indicate that transitions from dichromatism to monochromatism are not uncommon and that monochromatism can result from the evolution of [...]
Article
Mehdi Khadraoui, Auteur ;
David P. L. Toews, Auteur
ABSTRACT While communal roosting is fairly common in animals, the costs, benefits, and proximal factors influencing this behavior are poorly understood. Moreover, many species with communal roosting that have been studied to date have a strong a[...]
Article
Anna-Marie Benson, Auteur ;
Kevin Winker, Auteur
ABSTRACT Temporal constraints on migratory birds to molt, store fat, and migrate in autumn are probably most severe in populations breeding at high latitudes. We examined whether high-latitude time constraints were related to the overlap of thes[...]
Article
ABSTRACT Egg carrying by female ducks has been reported for several species around the world. The first record of a male Wood Duck (Aix sponsa) carrying an egg herein is reported. This is only the second documented account of a male of any water[...]
