Conventional oil and natural gas infrastructure increases brown-headed cowbird (Molothrus ater) relative abundance and parasitism in mixed-grass prairie [PDF]
The rapid expansion of oil and natural gas development across the Northern Great Plains has contributed to habitat fragmentation, which may facilitate brood parasitism of ground-nesting grassland songbird nests by brown-headed cowbirds (Molothrus ater ...
Jacy Bernath-Plaisted +2 more
doaj +2 more sources
Female vocalizations predict reproductive output in brown-headed cowbirds (Molothrus ater). [PDF]
Pair bonds are often maintained through the reciprocal and coordinated exchange of communicative signals. The ability to recognize and appropriately respond to a partner's signals will define a pair's ability to reproduce.
Gregory Mark Kohn
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Atypical song reveals spontaneously developing coordination between multi-modal signals in brown-headed cowbirds (Molothrus ater). [PDF]
The courtship and dominance behavior of brown-headed cowbirds (Molothrus ater) consists of a multi-modal display, including song as well as postural and wing movements. The temporal sequences of the acoustic and the visual display are coordinated.
Amanda R Hoepfner, Franz Goller
doaj +2 more sources
Declining Brown-headed Cowbird (Molothrus ater) populations are associated with landscape-specific reductions in brood parasitism and increases in songbird productivity. [PDF]
Many songbird species have experienced significant population declines, partly because of brood parasitism by the Brown-headed Cowbird (Molothrus ater), which is positively associated with increasing landscape forest cover in the midwestern United States.
W Andrew Cox +3 more
doaj +2 more sources
Red‐winged blackbirds nesting nearer to yellow warbler and conspecific nests experience less brood parasitism [PDF]
In functionally referential communication systems, the signaler's message intended for a conspecific receiver may be intercepted and used by a heterospecific eavesdropper for its own benefit. For example, yellow warblers (Setophaga petechia) produce seet
Shelby L. Lawson +3 more
doaj +2 more sources
Sampling locality is more detectable than taxonomy or ecology in the gut microbiota of the brood-parasitic Brown-headed Cowbird (Molothrus ater) [PDF]
Brown-headed Cowbirds (Molothrus ater) are the most widespread avian brood parasite in North America, laying their eggs in the nests of approximately 250 host species that raise the cowbird nestlings as their own.
Sarah M. Hird +4 more
doaj +3 more sources
Gastric lavage may not be representative of total microplastic ingestion for a wild passerine bird. [PDF]
Microplastic pollution has become a global concern and understanding its impact on wildlife requires effective sampling techniques that quantify exposure.
R Keith Andringa +5 more
doaj +2 more sources
Birds of a song sing together: adaptive choices in the use of shared vocalizations that indicate age [PDF]
The study of non-human animals that are vocal learning, which is the ability to alter the structure of vocalizations, has provided important insights into our understanding of the evolution and development of vocal communication and language.
Francisco R. Magdaleno +5 more
doaj +2 more sources
Functional neurogenomic responses to acoustic threats, including a heterospecific referential alarm call and its referent, in the auditory forebrain of red-winged blackbirds [PDF]
In animal communication, functionally referential alarm calls elicit the same behavioral responses as their referents, despite their typically distinct bioacoustic traits.
N. D. Antonson +6 more
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Context-Dependent Egr1 Expression in the Avian Hippocampus. [PDF]
In mammals, episodic memory and spatial cognition involve context-specific recruitment of unique ensembles in the hippocampal formation (HF). Despite their capacity for sophisticated spatial (e.g., for migration) and episodic-like (e.g., for food-caching)
Stephanie L Grella +4 more
doaj +1 more source

