Results 31 to 40 of about 2,126 (153)

Characterization of chromosome structures of Falconinae (Falconidae, Falconiformes, Aves) by chromosome painting and delineation of chromosome rearrangements during their differentiation [PDF]

, 2008
Karyotypes of most bird species are characterized by around 2n = 80 chromosomes, comprising 7–10 pairs of large- and medium-sized macrochromosomes including sex chromosomes and numerous morphologically indistinguishable microchromosomes.
GRIFFIN Darren K, HABERMANN Felix A, ISHIJIMA Junko, KOSAKA Ayumi, MATSHUDA Yoichi, NISHIDA Chizuko, TANABE Hideyuki   +6 more
core   +2 more sources

Diet of bird‐like troodontid dinosaurs: synthesis of a contentious clade

Biological Reviews, EarlyView.
ABSTRACT Troodontidae is a clade of small‐to medium‐sized maniraptoran theropods that mainly lived in Laurasia (modern Asia, North America and Europe) during the Jurassic and Cretaceous periods and are believed to have had a variety of diets. The uniqueness of troodontid teeth suggests that they diverged from the typical flesh‐based diet of non‐avian ...
Yui Chi Fan, Case Vincent Miller, Michael Pittman   +2 more
wiley   +1 more source

Surgical management of an open humeral fracture in a greater rhea (Rhea americana): Internal placement of a locking compression plate and post‐operative complications

Veterinary Record Case Reports, Volume 14, Issue 2, May 2026.
SUMMARY A 17‐year‐old, 24‐kg, female greater rhea (Rhea americana) presented with an acute onset of left wing droop. Clinical examination and radiographs revealed an open, simple, displaced, short‐oblique diaphyseal fracture of the distal third of the left humerus.
Pierre Huberdeau, Thomas Coutant, Aram Arslanian, Emeline Maurice, Fouad Stephan, Sylvie Laidebeure, Alexis Lécu   +6 more
wiley   +1 more source

Testing Mini-FLOTAC for the Monitorization of Gastrointestinal Parasitic Infections in Birds Kept at Four Iberian Zoological Institutions

Journal of Zoological and Botanical Gardens
Birds kept in zoological institutions are highly exposed to gastrointestinal (GI) parasitism caused by coccidia and nematodes. The current research aimed to characterize the avian GI parasitic fauna in several zoological collections in Portugal and Spain.
João Lozano, Cándido Pombo, Rami Salmo, Cristiana Cazapal-Monteiro, María Sol Arias, Daniela Carvalho, Madalena Lordelo, Augusto Batista, Rui Bernardino, Laura Rinaldi, Manuela Oliveira, Adolfo Paz-Silva, Luís Madeira de Carvalho   +12 more
doaj   +1 more source

Molecular sex identification in birds of prey [PDF]

, 2015
[Resumen] La correcta identificación del sexo de los animales es de vital importancia para la gestión y conservación de la fauna. En el caso de las aves, el sexado a partir de rasgos fenotípicos resulta complicado o imposible en numerosas ocasiones ...
Caeiro Aguado, Manuel
core  

A Global, Taxon‐Stratified, High‐Resolution Sampling‐Effort Dataset From GBIF for Bias‐Aware Ecological Modelling

Diversity and Distributions, Volume 32, Issue 5, May 2026.
ABSTRACT Introduction and Aim Spatiotemporal and taxonomic sampling bias in biodiversity occurrence data poses critical challenges for robust ecological inference, species distribution models (SDMs), and conservation planning. Despite the exponential growth in global biodiversity records over recent decades, these biases persist.
Ahmed El‐Gabbas
wiley   +1 more source

An atypical case of proventricular dilatation in a Red-and-green Macaw (Ara Chloropterus) [PDF]

, 2019
A Red-and-green Macaw (Ara chloropterus) was presented with regurgitation and passage of undigested seeds in the feces. Radiographic examination revealed dilatation of the proventriculus.
Geerinckx, Lise, Hellebuyck, Tom, Simard, Jules, Van Caelenberg, Annemie, Verlinden, Marc   +4 more
core  

Использование относительных пространственных показателей в исследованиях птичьих яиц [PDF]

, 2009
Зоологическая наука с момента своего возникновения и до настоящего времени в качестве количественных критериев, в большинстве случаев, использует абсолютные значения линейных промеров. Количество извлекаемой при этом информации не велико.
Митяй, И. С.
core  

Unruffling the global feather trade: a comparative analysis of CITES and LEMIS records of feathers and bird skins

Wildlife Biology, Volume 2026, Issue 1, January 2026.
During the 18th and 19th centuries, bird feathers (class: Aves) were harvested from wild populations and sold globally in enormous quantities to meet the rising demand of the fashion industry. Although many laws now prevent similar widescale harvest, there is a paucity of studies on the trade that has continued to occur since the 20th century.
Jasmin Broadbridge, Freyja Watters, Phillip Cassey   +2 more
wiley   +1 more source

鸟类学——第十二讲 走禽

野生动物学报, 1985
走禽（Cursores）包括有鸵形目（Struthioniformes）美洲鸵目（Rhei-formes）、鹤鸵目（Casuariiformes）、无翼目（Apterygiformes）和（共鸟）形目（Tinamiformes）,又称为平胸总目（Ratitae）或古颌总目（Palaeogna-thae）。走禽是现代鸟类中最大的种类。胸骨扁平不具龙骨突,锁骨退化或消失,骨盆多为封闭型,即左右趾骨在中线形成连合;
许维枢
doaj