Results 41 to 50 of about 12,265 (257)

Abundance of White-fronted Parrots and diet of an urban parrot assemblage (Aves: Psittaciformes) in a green Neotropical city

open access: yesAvian Research, 2022
Urban ecosystems are evolutionarily recent novel environments acting as biodiversity filters. Psittacidae birds are considered successful urban adapters mainly due to their generalist feeding and opportunistic behavior, allowing them to occupy ...
Cristel Álvarez-Castillo   +4 more
doaj   +1 more source

Subtle sexual plumage color dimorphism and size dimorphism in a South American colonial breeder, the Monk Parakeet (Myiopsitta monachus)

open access: yesAvian Research, 2020
Background Parrots (Psittacidae Family) are one of the most colorful groups of birds in the world, their colors produced both structurally and via unusual pigments (psittacofulvins). Most species are considered to be monogamous, and many have been viewed
Macarena Morales   +3 more
doaj   +1 more source

Evolution of Beak and Feather Disease Virus across Three Decades of Conservation Intervention for Population Recovery of the Mauritius Parakeet

open access: yesDiversity, 2021
Emerging infectious diseases (EIDs) are key contributors to the current global biodiversity crisis. Psittaciformes (parrots) are one of the most vulnerable avian taxa and psittacine beak and feather disease (PBFD) is the most common viral disease in wild
Deborah J. Fogell   +8 more
doaj   +1 more source

Parakeet damage to marigold

open access: yesJapanese Journal of Ornithology, 1994
Blossom-headed Parakeet Psittacula cyanocephala and Rose-ringed Parakeet P. krameri were recorded to cause 64.7% damage to a seed crop of African Marigold Tagetes erecta cv. Cracker Jack. This is the first ever report on the parakeet damage to marigold.
P. S. SANDHU, Jaswlnder S. SANDHU
openaire   +2 more sources

Nest-building behavior of Monk Parakeets and insights into potential mechanisms for reducing damage to utility poles [PDF]

open access: yesPeerJ, 2014
The Monk Parakeet (Myiopsitta monachus) commonly uses utility poles as a substrate for building large, bulky nests. These nests often cause fires and electric power outages, creating public safety risks and increasing liability and maintenance costs for ...
Kevin R. Burgio   +2 more
doaj   +2 more sources

Effects of cold winters and roost site stability on population development of non-native Asian ring-necked parakeets (Alexandrinus manillensis) in temperate Central Europe – Results of a 16-year census [PDF]

open access: yes, 2018
Asian ring-necked parakeets (Alexandrinus manillensis, formerly Psittacula krameri, hereafter RNP) first bred in Germany in 1969. Since then, RNP numbers increased in all three major German subpopulations (Rhineland, Rhine-Main, Rhine-Neckar ...
Bauer, Andreas   +24 more
core   +2 more sources

A “Loveless” Parakeet

open access: yesEmu - Austral Ornithology, 1903
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Electrochemotherapy for the treatment of an incompletely excised subcutaneous low grade epithelioid hemangioendothelioma in a budgerigar parakeet (Melopsittacus undulatus) [PDF]

open access: yesOpen Veterinary Journal, 2019
Background: Cutaneous tumors are rarely described in avians, and are frequently of viral origin. Solid tumors of vascular origin are seldom reported and usually result in a difficult management by surgery alone.
Andrea Lanza   +3 more
doaj   +1 more source

Infectious agents present in monk parakeet (Myiopsitta monachus) and rose-ringed parakeet (Psittacula krameri) invasive species in the parks of Madrid and Seville, Spain

open access: yesFrontiers in Veterinary Science, 2023
IntroductionThe introduction of invasive species into an ecosystem could result in biodiversity loss and the spread of infectious agents that could cause re-emergent or emergent zoonotic diseases.
Juan López   +9 more
doaj   +1 more source

Parakeets in the city [PDF]

open access: yesEmu, 1901
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

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