Results 51 to 60 of about 6,895 (265)
The relationship between the feather tuft of the uropygial gland and terrestrial/aquatic birds [PDF]
, 2013 The bird´s uropygial gland has a papilla in its caudal end and it can also show a feather tuft. These feathers may have a raquis or not. The purpose of our study was to compare the number, dimensions and types of the tuft´s feathers in aquatic and ...
Chiale, Maria Cecilia, Montalti, Diego
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Sorogrupos e genes de virulência em Escherichia coli isoladas de psitacídeos [PDF]
, 2011 Escherichia coli isolates from 24 sick psittacine birds were serogrouped and investigated for the presence of genes encoding the following virulence factors: attaching and effacing (eae), enteropathogenic E.
Blanco, Jesus e +7 more
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Ibis, EarlyView.Human‐induced environmental change is reshaping plant communities, requiring native animals to adapt their foraging behaviour to track and exploit novel food resources. Trees such as pines (Pinus spp.) introduced for plantation forestry outside of their native ranges often become naturalized.
Tirth Vaishnav +2 more
wiley +1 more source
Nidificación inusual del Loro Barranquero (Cyanoliseus patagonus) en cavidades naturales de árboles [PDF]
, 2018 The Burrowing Parrot Cyanoliseus patagonus is known to breed in burrows mostly on cliffs and ravines in arid or semi‐arid regions of Argentina and Chile.
Berkunsky, Igor +4 more
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A Cross‐Sectional Study on Parakeets Feeding and Housing Practices in Italy
Journal of Animal Physiology and Animal Nutrition, EarlyView.ABSTRACT Italy has one of the largest companion bird populations in Europe. This study aimed to investigate feeding and housing practices among Italian parakeet owners. An online questionnaire was distributed, yielding 433 voluntary responses. Participants were classified as hobbyists (HBY; ≤ 13 birds owned) or breeders (BRD; > 13 birds owned) to ...
Erdem Danyer +4 more
wiley +1 more source
DiversityAvian brood reduction was initially thought to be driven by insufficient food supply. Now it is more commonly considered a consequence of asynchronous hatching and resulting siblicide, direct filial infanticide (where parents kill specific chicks) or ...
Gabriela Vigo-Trauco +2 more
doaj +1 more source
Complete mitochondrial genome of golden conure (Guaruba guarouba)
Mitochondrial DNA. Part B. Resources, 2017 Arini tribe with 19 genera is the most diversified tribe of neotropical parrots. Six of them are classified as macaws and nine as conures. The presence of bare facial area distinguishes macaws from conures and other members of this tribe.
Adam Dawid Urantówka +2 more
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Biological Reviews, Volume 101, Issue 3, Page 1235-1254, June 2026.ABSTRACT Tool use research has long made the distinction between tool using that is considered learned and flexible, and that which appears to be instinctive and stereotyped. However, animals with an inherited tool use specialisation can exhibit flexibility, while tool use that is spontaneously innovated can be limited in its expression and facilitated
Jennifer A. D. Colbourne +1 more
wiley +1 more source
Veterinární Medicína, 2010 In 2005 a Mycobacterium genavense infection was diagnosed in one blue-headed parrot (Pionus menstruus) imported from Surinam (South America), the first such incidence in the Czech Republic. The bird died suddenly. Histopathological examination revealed a
J.E. Shitaye +9 more
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Archives of Veterinary Science and Medicine, 2020 This study describes the occurrence of psittaciform bornavirus antigens and antibodies in tissues of birds persistently infected with psittaciform bornavirus. Analysis of serum of infected birds shows that antibodies against the P40 nucleoprotein occur most commonly, whereas antibodies to the glycoprotein are virtually completely absent.
Josephine M McHugh, Siwo R de Kloet
openaire +1 more source