Results 21 to 30 of about 34,909 (241)

Global trade in parrots – Influential factors of trade and implications for conservation

open access: yesGlobal Ecology and Conservation, 2021
Parrots are the most traded birds internationally, mainly to be used as companion pets, which threatens the global biodiversity. Using the large dataset derived from the Convention on International Trade in Endangered Species of Wild Fauna and Flora ...
David Tsz Chung Chan   +3 more
doaj   +1 more source

Core and Shell Song Systems Unique to the Parrot Brain.

open access: yesPLoS ONE, 2015
The ability to imitate complex sounds is rare, and among birds has been found only in parrots, songbirds, and hummingbirds. Parrots exhibit the most advanced vocal mimicry among non-human animals.
Mukta Chakraborty   +10 more
doaj   +1 more source

Nesting innovations in neotropical parrots associated to anthropogenic environmental changes

open access: yesEcology and Evolution, 2023
Parrots are among the most diverse and widely distributed groups of birds and one of the most threatened bird orders mainly due to habitat loss and illegal poaching.
Pedro Romero‐Vidal   +8 more
doaj   +1 more source

Seroprevalence of Hepatitis E Virus in Four Species of Parrots in China [PDF]

open access: yesPakistan Veterinary Journal, 2014
In this study, antibodies against avian Hepatitis E Virus (avian HEV) were detected in 6.43% of examined serum samples (n=311) from budgerigars (Melopsittacus undulatus), lovebirds (Agapornis sp.), cockatiel (Nymphicus hollandicus) and Alexandrine ...
Xiao-Xuan Zhang, Nian-Zhang Zhang, Dong-Hui Zhou, Wei-Peng Tian, Ying-Tian Xu and Xing-Quan Zhu
doaj  

Social Context Modulates Tolerance For Pragmatic Violations In Binary But Not Graded Judgments [PDF]

open access: yes, 2019
A common method for investigating pragmatic processing and its development in children is to have participants make binary judgments of underinformative (UI) statements such as Some elephants are mammals.
Grodner, Daniel J., Kim, M., Sikos, L.
core   +6 more sources

Nest box placement influences occupancy by Yellow-headed (Amazona oratrix) and White-fronted (Amazona albifrons) Parrots in the pine savannas of Belize

open access: yesAvian Conservation and Ecology, 2022
Supplementation of nest boxes is a common practice to increase nesting opportunities for cavity nesters, such as psittacids (i.e., parrots), many of whom are species of conservation concern.
Fabio L. Tarazona-Tubens   +4 more
doaj  

Contrafreeloading Indicating the Behavioural Need to Forage in Healthy and Feather Damaging Grey Parrots

open access: yesAnimals, 2023
Contrafreeloading (CFL) is a concept that describes the preference of an animal to work for food even when identical food is freely available, and reflects an intrinsic motivation to engage in foraging-related activities.
Yvonne R. A. van Zeeland   +2 more
doaj   +1 more source

Local knowledge and community behavior in the exploitation of parrots in surrounding area of aketajawe lolobata national park

open access: yesBiosfer, 2019
Parrots include in birds of Aves class and Psittaciformes order. In Indonesia, parrots in known by their local species names such as Nuri (true parrot), Kakatua (Cockatoo), and Perkici (Loriini).
M Nasir Tamalene, Said Hasan, K Kartika
doaj   +1 more source

Reintroduction of the Extinct-in-the-Wild Spix’s Macaw (Cyanopsitta spixii) in the Caatinga Forest Domain of Brazil

open access: yesDiversity
We describe efforts to reintroduce the extinct-in-the-wild Spix’s Macaw (Cyanopsitta spixii) within its historical range in eastern Brazil. Twenty captive-reared Spix’s Macaws were released, along with 15 Blue-Winged Macaws (Primolius maracana), as ...
Cromwell Purchase   +6 more
doaj   +1 more source

Fit for purpose? Analysis of the relationship between skull, beak shape and feeding ecology in Psittaciformes. [PDF]

open access: yesJ Anat
Psittaciformes exhibit high levels of morphological diversity, particularly in skull and beak structure, previously linked to diet and body size. Although there were some levels of significance between diet and beak shape, body mass was a much stronger co‐variate. Diet is not determining beak shape within the clade.
Harrison SL, Sutton GP, Deeming DC.
europepmc   +2 more sources

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