Results 21 to 30 of about 460,219 (313)
Was dinosaurian physiology inherited by birds? [PDF]
Archaeopteryx is the oldest and most primitive known bird (Avialae). It is believed that the growth and energetic physiology of basalmost birds such as Archaeopteryx were inherited in their entirety from non-avialan dinosaurs.
Erickson Gregory M. +25 more
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Physical cognition : birds learn the structural efficacy of nest material [PDF]
This work was supported by the BBSRC (BB/I019502/1) and Roslin Institute Strategic Grant funding from the BBSRC. The APC was paid through RCUK OA block grant funds.It is generally assumed that birds’ choice of structurally suitable materials for nest ...
Meddle, Simone L. +8 more
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Detection of Laryngotracheitis Virus in Poultry Flocks with Respiratory Disorders in Slovenia
Infectious laryngotracheitis (ILT) is an acute, highly contagious infectious disease of the upper respiratory tract in chickens and other poultry species that causes significant economic losses in countries worldwide.
Olga Zorman Rojs +5 more
doaj +1 more source
Documenting and interpreting trends in the abundance and distribution of bird populations is critical to monitoring their status and setting conservation priorities.
Danielle M. Ethier +2 more
doaj
The spatial variation in the strength of climate change may lead to different impacts on migratory birds using different breeding areas across a region.
Beatriz Martín +2 more
doaj +1 more source
Waterfowl (ducks, geese, swans) are among the few bird groups showing recent population increases in North America. By contrast, marsh birds (bitterns, rails, grebes) are declining, despite this group appearing to benefit from many of the same ...
Katharine R. Studholme +4 more
doaj
Background Mycoplasmas are found in many different species. Until now 26 avian mycoplasma species have been described, but in the most free ranging bird species the prevalence and significance of Mycoplasma spp. is still unclear. Case presentation In May
Theresa Sophie Klostermann +1 more
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Frugivory in Raptors: New Observations from Australia and a Global Review
The diets of raptors are some of the best studied and well-known of all bird groups. Raptors are typically carnivores, hunting and feeding on vertebrates and, for some species, invertebrates. Here, we described instances of the Black Kite (Milvus migrans)
James A. Fitzsimons, Jack Leighton
doaj +1 more source
The Various Ways in Which Birds Blink
There has, to date, been no systematic study of the various ways in which birds blink. Digital video recordings were made, and studied using still frames, of 524 bird species, mainly in zoos but also in the wild.
Jesse J. Parsons, John G. L. Morris
core +1 more source
Abstract Our knowledge of the recent Avifauna of the island of Rodriguez has hitherto been confined to a few memoirs published by Mr. Edward Newton, and Professor Alfred Newton of Cambridge. The former has given us an account of a hurried trip of a few days duration made by him in 1864 (Ibis, 1865, pp.
openaire +1 more source

