Results 51 to 60 of about 8,953 (216)
This report explores which muscles of the pectoral girdle are employed to allow birds to hold their wings horizontally with a level aerofoil surface during a glide. Abstract Whilst many birds glide briefly with wings held horizontally, some species maintain this posture for extended periods during soaring.
D. Charles Deeming, María Clelia Mosto
wiley +1 more source
The highly repetitive DNA sequence of centromeric heterochromatin is an effective molecular cytogenetic marker for investigating genomic compartmentalization between macrochromosomes and microchromosomes in birds.
Yoshinobu Uno +4 more
doaj +1 more source
The unexpected survival of an ancient lineage of anseriform birds into the Neogene of Australia: the youngest record of Presbyornithidae [PDF]
. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.Presbyornithids were the ...
Boles, Walter E +4 more
core +1 more source
We used sedimentary ancient DNA shotgun metagenomics to reconstruct past bird communities in northern high‐latitude environments. By using long time series and data collected across a large environmental gradient, we contributed in a unique and explorative way to the understanding of palaeoecological dynamics between birds and their habitat on the ...
M. M. Sander +5 more
wiley +1 more source
The Common Pochard Aythya ferina (Linnaeus, 1758) (Aves: Anseriformes: Anatidae) is recorded for the first time in Vedanthangal Bird Sanctuary, Tamil Nadu, India.
Samidurai Jayakumar +2 more
doaj +1 more source
High pathogenicity avian influenza virus (HPAIV) clade 2.3.4.4b has re-emerged in the United Kingdom in 2021–2022 winter season, with over 90 cases of HPAIV detected among poultry and captive birds in England, Scotland, Wales, and Northern Ireland ...
Fabian Z.X. Lean +6 more
doaj +1 more source
Recompte d’aus aquàtiques hivernants de les Illes Balears. Gener 2014 [PDF]
S’han registrat un total de 24.051 aus pertanyents a 57 espècies. El 72 % dels efectius s’han trobat a Mallorca, el 19 % a Menorca i el 7 % a Pitiüses. Es comparen els resultats per illes amb la mitjana dels anys 1991-2013.
Garcia, David +3 more
core
Adaptation in the Avian Middle Ear—The Columellar Annular Ligament in Aquatic and Diving Birds
The size of the columellar footplate relative to the oval window shows striking variation across species: it fits snugly within the oval window in, for example owls (left), but considerably smaller than the oval window in diving taxa such as cormorants (right).
John Peacock
wiley +1 more source
Migration routes and key stopovers of Anser fabalis fabalis (Anseriformes): critical protection gaps
The population of Anser fabalis fabalis wintering in Europe have shown decline in recent decades. At the same time, the population dynamic of most migratory birds largely depends on the quality of migratory stopover sites, which are necessary to ...
Sofya B. Rozenfeld +2 more
doaj +1 more source
Welfare Assessment for Captive Anseriformes: A Guide for Practitioners and Animal Keepers
Welfare assessment is a tool to both identify welfare challenges and to evidence where current husbandry practices support positive welfare outcomes. Such tools are becoming more available and can be amended based on the nature of the facility and needs ...
Paul Rose, Michelle O’Brien
doaj +1 more source

