Results 31 to 40 of about 658 (123)

Tracheria Troyana (Krapovickas and Nasif, 2011): Redefinition, Environmental Distribution, and Heritage Conservation [PDF]

, 2019
The South American caviomorph ichnogenus Tracheria troyana is reevaluated here based on recently discovered specimens that allow a more thorough investigation of footprint taphonomy and ichnotaxonomy. The footprints include detailed autopodium morphology
Alonso Muruaga, Pablo, Ciccioli, Patricia L., Krapovickas, Verónica, Marenssi, Sergio, Muñoz, Nahuel Antu, Vizcaíno, Sergio Fabián   +5 more
core   +3 more sources

Avian influenza: global assessment of potential pandemic of the twenty first century [PDF]

, 2009
The emergence of highly pathogenic avian influenza (HPAI) of Asian lineage and the subsequent spillover to other parts of the globe and spread of Eurasian-Africa H5N1 epidemic into domestic, wild birds and human have generated unprecedented attention in ...
Abubakar, Mustapha Bala, Bejo, Mohd Hair, Ideris, Aini, Omar, Abdul Rahman   +3 more
core   +1 more source

Immunostaining of P450c17, Aromatase and Oestrogen Receptor Alpha in Germ and Somatic Cells During Gonadal Development in Greater Rhea

Anatomia, Histologia, Embryologia, Volume 55, Issue 2, March 2026.
ABSTRACT The greater rhea (Rhea americana), the largest bird species in South America, has significant economic value due to its meat, eggs, leather, feathers and oil. However, its lack of external sexual dimorphism poses challenges for reproductive management and breeding programmes.
Marilú Cristofoli, Danielle Cristina Calado de Brito, Mayla Magalhães de Oliveira Alcobaça, Flavia Maria Pia Montenegro Donoso, Fabiana Morse Gosson Jorge, Marco Aurélio Schiavo Novaes, Moacir Franco Oliveira, Antônio Chaves de Assis Neto   +7 more
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  

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

Bone Mineral Density of Willow Ptarmigan (Lagopus lagopus) as a Potential Taphonomic Factor in Skeletal Part Attrition

International Journal of Osteoarchaeology, Volume 35, Issue 5, Page 284-294, September/October 2025.
ABSTRACT Agents of taphonomy can bias skeletal parts and the frequency of bones in archaeological sites. An important factor to consider is the possible effect of bone density‐mediated attrition on archaeornithological assemblages. We scanned willow ptarmigan (Lagopus lagopus) specimens using a Lunar iDXA and an enCcore small animal body add‐on to ...
Frank J. Dirrigl Jr., Samuel R. Buchanan   +1 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

Diet of Cattle Egrets (Bubulcus ibis ibis) in the flood valley of the Paraná River, northern Argentina [PDF]

, 2009
Fil: Ducommun, María de la Paz. Instituto Nacional de Limnología (INALI, CONICET-UNL); Santo Tomé; Santa FeFil: Quiroga, Martín Aníbal. Instituto Nacional de Limnología (INALI, CONICET-UNL); Santo Tomé; Santa FeFil: Beltzer, Adolfo Héctor.
Beltzer, Adolfo Héctor, Ducommun, María de la Paz, Quiroga, Martín Aníbal, Schnack, Juan Alberto   +3 more
core  

The Lithornithiformes (Aves) from the early Eocene London Clay of Walton‐on‐the‐Naze (Essex, UK)

Papers in Palaeontology, Volume 11, Issue 1, January/February 2025.
Abstract We describe multiple partial skeletons and isolated bones of the palaeognathous Lithornithiformes from the early Eocene London Clay of Walton‐on‐the‐Naze (Essex, UK). The well‐preserved specimens are assigned to at least four species of the taxa Lithornis and Pseudocrypturus. Two species of Lithornis are identified as L. nasi and L.
Gerald Mayr, Andrew C. Kitchener
wiley   +1 more source

Endoparasite Infections in Pet and Zoo Birds in Italy

The Scientific World Journal, Volume 2012, Issue 1, 2012., 2012
Faecal samples were individually collected from pet (n = 63) and zoo (n = 83) birds representing 14 orders and 63 species. All the samples were examined by faecal flotation technique. In a subgroup of samples (n = 75), molecular assays were also used to detect Cryptosporidium oocysts and Giardia duodenalis cysts.
Roberto Papini, Martine Girivetto, Marianna Marangi, Francesca Mancianti, Annunziata Giangaspero, Magdalena Brunanska, Frank W. Schaefer   +6 more
wiley   +1 more source