Results 21 to 30 of about 680 (164)

Social brains in context: lesions targeted to the song control system in female cowbirds affect their social network. [PDF]

open access: yesPLoS ONE, 2013
Social experiences can organize physiological, neural, and reproductive function, but there are few experimental preparations that allow one to study the effect individuals have in structuring their social environment. We examined the connections between
Sarah E Maguire   +2 more
doaj   +1 more source

Revisión preliminar de las especies del género Brueelia Kéler, 1936 (Phthiraptera, Philopteridae) parásitas de Icterinae (Aves, Passeriformes, Fringillidae)

open access: yesGraellsia, 1996
Las especies del género Brueelia que parasitan distintos táxones de Icterinae presentan un conjunto de características somáticas que permiten discriminarlas en dos agrupamientos informales de especies, aquí denominados grupo picturata y grupo ornatissima,
A. C. Cicchino, D. C. Castro
doaj   +1 more source

Un caso de deformación del pico en el tordo cabeza café (Molothrus ater)

open access: yesHuitzil, 2013
Registré la presencia de un individuo macho, probablemente inmaduro, de tordo cabeza café (Molothrus ater) con deformación en el pico, en la localidad de Petaquillas, municipio de Chilpancingo, Guerrero.
Epifanio Blancas-Calva
doaj   +1 more source

Non-breeding social behaviour as an investment in reducing future territoriality costs. [PDF]

open access: yesBiol Rev Camb Philos Soc
ABSTRACT Territoriality is costly, and animals should adopt strategies to cope with these costs. Seasonal territoriality for breeding – a common strategy in many groups of animals – can reduce costs during the non‐breeding season but requires establishing new territories every breeding season.
Ramellini S   +3 more
europepmc   +2 more sources

Owens Valley nesting willow flycatcher under pressure

open access: yesCalifornia Fish and Wildlife Journal, 2021
Willow flycatchers (Empidonax traillii; WIFL) nest along the Owens River and Horton Creek in the Owens Valley. Migrating WIFL visit these sites as well as many other tributaries to both the Owens River and Mono Lake.
Lacey Greene   +2 more
doaj   +1 more source

Eavesdropping on Referential Yellow Warbler Alarm Calls by Red-Winged Blackbirds Is Mediated by Brood Parasitism Risk

open access: yesFrontiers in Ecology and Evolution, 2021
Referential alarm calls that denote specific types of dangers are common across diverse vertebrate lineages. Different alarm calls can indicate a variety of threats, which often require specific actions to evade. Thus, to benefit from the call, listeners
Shelby L. Lawson   +3 more
doaj   +1 more source

Ultraviolet-reflective film applied to windows reduces the likelihood of collisions for two species of songbird [PDF]

open access: yesPeerJ, 2020
Perhaps a billion birds die annually from colliding with residential and commercial windows. Therefore, there is a societal need to develop technologies that reduce window collisions by birds.
John P. Swaddle   +3 more
doaj   +2 more sources

The Role of Campus as an Urban Multiuse Protected Area in Bird Nocturnal Roosting Habitat Function. [PDF]

open access: yesEcol Evol
Campus green spaces are essential for providing critical nocturnal habitats, playing a key role in supporting urban bird species in fragmented environments. Seasonal variations significantly influence nocturnal bird roosting site selection, with birds adapting their roosting patterns to changing environmental conditions throughout the year.
He M, Li B, Du W, Du C.
europepmc   +2 more sources

Effects of vegetation, corridor width and regional land use on early successional birds on powerline corridors. [PDF]

open access: yesPLoS ONE, 2012
Powerline rights-of-way (ROWs) often provide habitat for early successional bird species that have suffered long-term population declines in eastern North America. To determine how the abundance of shrubland birds varies with habitat within ROW corridors
Robert A Askins   +2 more
doaj   +1 more source

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