...Katie M. Schroeder; Luke Remage-Healey ABSTRACT Early-life experiences with signals used in communication are instrumental in shaping an animal's social interactions. In songbirds, which use vocalizations for guiding social interactions and mate choice, recent studies show that sensory effects...

... orientation cues, an assessment of the overall efficacy of this approach is difficult to conduct. Here, we directly tested the efficacy of small magnets for temporarily disrupting magnetic compass orientation in small migratory songbirds using orientation cages under controlled experimental conditions. We...

... that are associated with FA transport and metabolism. These first comprehensive results on gene and protein expression suggest that changes in molecular correlates of FA transport and metabolism may aid the decision for migratory departure from wintering areas in obligate songbird migrants. * Author...

... in mediating behavioral modifications to prolonged wakefulness in arctic-breeding songbirds. * Authors for correspondence ( [email protected] ; [email protected] ) Competing interests The authors declare no competing or financial interests. 7 9 2020 24 2 2021 ©...

.... Localized inactivation of glucocorticoids is under the control of Type 2 11β-HSD (11β-HSD2). The function of these enzymes is largely unexplored in wild species, particularly songbirds. Here, we investigated the contribution of both clearance and generation of glucocorticoids to regulation of the hormonal...

... for correspondence ( [email protected] ) Competing interests The authors declare no competing or financial interests. 30 4 2019 15 7 2019 © 2019. Published by The Company of Biologists Ltd 2019 http://www.biologists.com/user-licence-1-1/ Social context Courtship Songbird...

...-licence-1-1/ Summary: Migration is oxidatively challenging for birds, and in yellow-rumped warblers, the oxidative challenge is strongly related to energy expenditure during flight but not dietary long-chain PUFA. Migration Oxidative stress Antioxidants Songbird Flight Wind tunnel...

... in the environment. Here, we investigated how an acute stressor affected testes function in a songbird, and how chronic stressors influenced the acute stress response. We exposed male dark-eyed juncos ( Junco hyemalis ) either to chronic or minimal (control) disturbance during testicular recrudescence, after which...

...Solveig C. Mouterde; Julie E. Elie; Frédéric E. Theunissen; Nicolas Mathevon Reliable transmission of acoustic information about individual identity is of critical importance for pair bond maintenance in numerous monogamous songbirds. However, information transfer can be impaired by environmental...

...Heiko Schmaljohann; Tobias Rautenberg; Rachel Muheim; Beat Naef-Daenzer; Franz Bairlein SUMMARY The magnetic field, the sun, the stars and the polarization pattern of visible light during twilight are important cues for orientation in nocturnally migrating songbirds. As these cues change with time...

... capacity basal metabolic rate bird glucocorticoid metabolic scope peak metabolic rate plasticity songbird standard metabolic rate corticosterone Variation in the prenatal and postnatal environments can lead to long-term variation in adult phenotype, a process often referred...

... of forebrain and basal ganglia circuits and sex steroid hormones to the control of vocal consistency. Across behavioral, developmental and mechanistic studies, a convergent theme regarding the importance of vocal practice in juvenile and adult songbirds emerges, providing a basis for linking these levels...

...Darren S. Proppe; Christopher B. Sturdy SUMMARY Songbirds often modify elements of their songs or calls in particular social situations (e.g. song matching, flock convergence, etc.) but whether adult individuals also make vocal modifications in response to abiotic environmental factors (e.g. food...

... potential solutions to a wide range of biological and societal questions that date back two millennia to the Greek philosopher Aristotle's enigma about songbird migration. Several of the more recent Grand Challenges in Environmental Sciences, such as the regulation and functional consequences of biological...

... recordings of frequency sweeps while rotating each subject in a horizontal plane aligned with either the maxilla or mandible. We describe vocal tract resonances as well as how sound radiates as a function of beak gape. Results are inconsistent with the hypothesis that songbirds vary beak gape as a mechanism...

...-mail: [email protected] ) 9 8 2004 © The Company of Biologists Limited 2004 2004 sound localization azimuth songbird orientation Accurate sound-localization abilities are often associated with a predatory life style. Barn owls, Tyto alba , for example, use auditory cues...

...Jeffrey Podos; Joel A. Southall; Marcos R. Rossi-Santos SUMMARY Recent studies of vocal mechanics in songbirds have identified a functional role for the beak in sound production. The vocal tract (trachea and beak)filters harmonic overtones from sounds produced by the syrinx, and birds can fine-tune...