Results 11 to 20 of about 1,744 (197)

Parrots in the wild in Polish cities. [PDF]

PLoS ONE
Amateur breeding of parrots as pets has contributed to many species being found in areas where they never occurred in the wild, particularly in warmer regions, but also in the temperate climates of North America and Europe.
Agnieszka Ważna, Mateusz Ciepliński, Weronika Ratajczak, Jacek Bojarski, Jan Cichocki   +4 more
doaj   +2 more sources

Purification, crystallization and preliminary X-ray diffraction studies of parakeet (Psittacula krameri) haemoglobin. [PDF]

Acta Crystallogr Sect F Struct Biol Cryst Commun, 2009
Birds often show efficient oxygen management in order to meet the special demands of their metabolism. However, the structural studies of avian haemoglobins (Hbs) are inadequate for complete understanding of the mechanism involved. Towards this end, purification, crystallization and preliminary X-ray diffraction studies have been carried out for ...
Jaimohan SM, Naresh MD, Arumugam V, Mandal AB.   +3 more
europepmc   +4 more sources

The Number and Distribution of Introduced and Naturalized Parrots

Diversity, 2021
Parrots have been transported and traded by humans for at least the last 2000 years and this trade continues unabated today. This transport of species has involved the majority of recognized parrot species (300+ of 382 species).
Carlos E. Calzada Preston, Stephen Pruett-Jones   +1 more
doaj   +2 more sources

An Influx of Non-Native Bird Species into the Natural Environment Owing to the Accidental Release of Pet Birds in Japan [PDF]

Animals
The escape of pet birds into the wild raises concerns about the introduction of invasive avian species. This study investigated the impact of escaped pet birds on the introduction of non-native species in Japan.
Sumiko Nishida, Wataru Kitamura
doaj   +2 more sources

Sarcocystis falcatula infection in ringneck parakeets (Psittacula krameri) in Minas Gerais, Brazil

Brazilian Journal of Veterinary Pathology
Sarcocystis falcatula is an Apicomplexa protozoan parasite recognized for its pathogenicity in birds. This microorganism has a complex life cycle involving definitive hosts, such as marsupials from the Didelphidae family, and intermediate hosts, which ...
Acácia Eduarda de Jesus Nascimento, Nayara Toledo da Silva, Tatyana Salarolli de Carvalho, Gabriel Almeida de Oliveira Bezerra, Lucas dos Reis Souza, Ayisa Rodrigues de Oliveira, Renato Lima Santos   +6 more
doaj   +2 more sources

Application of Minimally Invasive Oral Swab Samples for qPCR-Based Sexing in Neognathae Birds [PDF]

Veterinary Sciences
Birds are inherently social creatures that rely on pairing to enhance their well-being. Since many bird species lack obvious physical differences between females and males, sex identification is essential for ensuring their welfare.
Maria-Carmen Turcu, Anamaria Ioana Paștiu, Lucia-Victoria Bel, Anca-Alexandra Doboși, Dana Liana Pusta   +4 more
doaj   +2 more sources

Returning to the Wilderness: Potential Habitat Suitability of Non-Native Pet Birds in South Africa [PDF]

Biology
The global trade of non-native pet birds has increased in recent decades, and this has accelerated the introduction of invasive birds in the wild. This study employed ensemble species distribution modelling (eSDM) to assess potential habitat suitability ...
Tinyiko C. Shivambu, Ndivhuwo Shivambu, Takalani Nelufule, Moleseng C. Moshobane, Nimmi Seoraj-Pillai, Tshifhiwa C. Nangammbi   +5 more
doaj   +2 more sources

Determination of Ophthalmic Parameters and Ocular Morphology in Ring-Necked Parakeets (Psittacula krameri). [PDF]

Vet Ophthalmol
ABSTRACT Purpose To determine normal ophthalmic test values and to describe the ocular morphology of ring‐necked parakeets (Psittacula krameri). Materials and Methods 33 captive birds were examined, although not all tests were conducted on each bird.
Wendt FT, Montiani-Ferreira F, Dall'agnol CC, Mello FR, Costa Solak TF, Beirão BC, Machado M, Lange RR.   +7 more
europepmc   +2 more sources

Psittacula krameri subsp. krameri [PDF]

Biological Journal of the Linnean Society, 2022
Psittacula krameri krameri (Scopoli, 1769) LITERATURE. — Bannerman (1931); Green & Sayer (1979); Holyoak & Seddon (1989); Thonnérieux et al. (1989); Aimassi & Levi (1993); Dowsett (1993); Balanca & de Visscher (1997); Mauvais (1998); Borrow & Demey (2001, 2014); Portier (2002c); Söderström et al. (2003); Thiollay (2006a); Balanca et al.
Boano, Giovanni, Belemsobgo, Urbain, Silvano, Fabrizio, Hema, Emmanuel M., Belemsobgo, Aristide, Dimobe, Kangbéni, Pavia, Marco   +6 more
openaire   +3 more sources

Parental Provisioning in an Urban Apex Predator. [PDF]

Ecol Evol
We combine high‐definition webcams and citizen science to explore parental care in urban peregrine falcons from 30 locations across England between 2020 and 2023. By analysing detailed webcam footage, we quantified changes in prey type and delivery rates as chicks developed.
Drewitt EJA, Mak B, Cuthill IC, Thomas RJ.   +3 more
europepmc   +2 more sources