.... Post-flight and during radiant heating, birds increased HDA surface area – most notably at the wing. During simulated wind produced using a fan, the HDAs of the beak and wing were eliminated, and areas of other HDAs were reduced. Our results demonstrate that birds modulate active HDAs to maintain...

... climate change, development and fitness. We investigated whether phenotypic consequences of the thermal environment in early life remained in adulthood in two studies on Japanese quail ( Coturnix japonica ). Birds were raised under simulated heatwave, cold snap or control conditions, from hatching until...

.... Aerodynamics Biomechanics Bird Control Bio-inspired Insect The Royal Veterinary College European Research Council ERC 682501 Biotechnology and Biological Sciences Research Council BB/R002657/1 Aviation has been founded upon biological insight since its...

... the bill, given that body condition influences the surface temperature of another body region (the eye region). We measured the surface temperature of the bills of song sparrows ( Melospiza melodia ) before, during and after handling by an observer at 37°C ambient temperature. We fed five birds...

... and waking during daytime were weaker in winter than in summer. During daytime in winter, there were many instances where the birds were awake but not moving. Experimental sleep deprivation had no effect on the strength of the correlation between activity scores and EEG-based wake time. Overall, hourly...

... specialist. Behavioural acuity Interaural time difference Interaural level difference Bird Perceived physical cues Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659 EXC2177 Sound localization supports communication in both humans and animals...

...Amanda M. Palecek; Megan V. Novak; Richard W. Blob ABSTRACT Wading behaviours, in which an animal walks while partially submerged in water, are present in a variety of taxa including amphibians, reptiles, mammals and birds. Despite the ubiquity of wading behaviours, few data are available...

... and post-fledging survival of Franklin's Gulls . Bird-Band . 43 , 267 - 275 . 10.2307/4511903 Burger , J . ( 1981 ). On becoming independent in Herring Gulls: parent-young conflict . Am. Nat . 117 , 444 - 456 . 10.1086/283727 Calder , P. C . ( 2015 ). Marine omega-3...

... received less attention. In birds, asynchronous hatching creates challenging developmental conditions for the last-hatched chicks, but differential allocation in last-laid eggs might help to compensate this initial handicap. The relative importance and potential interaction between pre- and post-hatching...

...-1/ Highlighted Article: Antagonistic effects of maternal antibodies and egg testosterone modulate offspring telomere length over growth in zebra finch fledglings. Maternal effects Egg Growth Maternal antibodies Testosterone Telomere Bird Telomeres are non-coding DNA...

...Tatiana S. Filatova; Denis V. Abramochkin; Holly A. Shiels ABSTRACT Birds occupy a unique position in the evolution of cardiac design. Their hearts are capable of cardiac performance on par with, or exceeding that of mammals, and yet the structure of their cardiomyocytes resembles those of reptiles...

... aerodynamics; if they act in the same plane, lift from the tail might compensate for lift lost over the fuselage (body), reducing induced drag with a more even downwash profile. However, textbook aeronautical principles should be applied with caution because birds have highly capable sensing and active control...

... ; [email protected] ) Competing interests The authors declare no competing or financial interests. 5 4 2019 16 9 2019 © 2019. Published by The Company of Biologists Ltd 2019 http://www.biologists.com/user-licence-1-1/ Summary: Physiological maturation in birds, prior...

... for a given species and its usefulness – relative to other localization cues – has been a powerful selective force in the evolution of the neural circuits involved. Birds and other non-mammals have internally coupled middle ears working as pressure-difference receivers that may significantly enhance ITDs...

... but data for birds remain scarce. We tested the hypothesis that colonization of germ-free chicks from a quail line selected for a high emotional reactivity (E+) with GM from a line with low emotional reactivity (E−) would reduce their emotional behaviour in comparison with germ-free chicks from an E+ line...

... with computer modelling reveal that close clustering of cSR along the Z-line is vital for rapid propagation of the Ca 2+ signal, enabling strong, fast contractions of the avian heart. Bird Chicken Computational model Calcium diffusion Electron tomography Peripheral coupling The four...

... release remains low until a threshold level of mitochondrial inactivity is exceeded. Free electron leak ROS/ATP ratio Oxidative phosphorylation Reactive oxygen species Skeletal muscle Starvation Bird Many physiological mechanisms, such as modulation of lipid mobilization and oxidation...

... technologies making navigational experiments on long-distance migratory and other wild birds much more accessible; the almost complete loss of the historically dominant, large-scale pigeon loft/research facilities; and prohibitive university per diem costs as well as animal care and use restrictions...

...Glenna T. Clifton; Andrew A. Biewener ABSTRACT Loons (Gaviiformes) are arguably one of the most successful groups of swimming birds. As specialist foot-propelled swimmers, loons are capable of diving up to 70 m, remaining underwater for several minutes, and capturing fish. Despite the swimming...

...Heather E. Watts; Daniela Jimenez; Veronica Pacheco; Tauras P. Vilgalys ABSTRACT Temperature-correlated shifts in reproductive timing are now well documented in numerous bird species. However, whether temperature directly influences reproductive timing or whether its effects are mediated...