Results 21 to 30 of about 1,936 (203)

Parental Provisioning in an Urban Apex Predator [PDF]

open access: yesEcology and Evolution, Volume 15, Issue 12, December 2025.
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.
Edward J. A. Drewitt   +3 more
wiley   +2 more sources

Common cuckoo eggs are more resistant to puncture by the host [PDF]

open access: yesInternational Journal for Parasitology: Parasites and Wildlife
The puncture resistance hypothesis suggests that thick-shelled eggs of parasitic birds can resist puncture-ejection by the host. However, few experiments have yet been conducted to test this hypothesis in terms of natural host behavior (e.g., pecking at ...
Hanlin Yan, Longwu Wang, Wei Liang
doaj   +2 more sources

Unmasking Budgerigar Splenic Leukocyte Populations With Single-Cell Transcriptomics and Multiplex RNA In Situ Hybridization [PDF]

open access: yesJournal of Immunology Research
The current understanding of the avian immune system primarily stems from research conducted in chickens, given their economic significance as a food source. Extending the research to other avian species like Psittaciformes requires the use of label-free
Anne De Meyst   +4 more
doaj   +2 more sources

Do domestic budgerigars perceive predation risk? [PDF]

open access: yesAnimal Cognition
Predation risk may affect the foraging behavior of birds. However, there has been little research on the ability of domestic birds to perceive predation risk and thus adjust their feeding behavior.
Chang Wang   +6 more
doaj   +2 more sources

Experimental studies of social foraging in budgerigars, Melopsittacus undulatus [PDF]

open access: yes, 2015
Many animals are social foragers. Foraging with others may confer a number of advantages, but is also likely to present a number of challenges that are not encountered by solitary foragers.
Cowie, Alice
core   +2 more sources

Consumption of Melopsittacus undulatus (Shaw, 1805) (Psittaciformes, Psittacidae) by Sapajus cay Illiger, 1815 (Primates, Cebidae) in Midwest region of Brazil

open access: yesActualidades Biológicas, 2021
The interaction between native and exotic species can cause changes both in the food-chain and in aspects of competition for trophic resources, such as predation. Predatory events are common in nature, but difficult and usually recorded opportunistically.
Rodney Murillo Peixoto-Couto   +2 more
doaj   +1 more source

Age dynamics of the stomach and intestines’ anatomical parameters of the budgerigar (Melopsittacus undulatus)

open access: yesTheoretical and Applied Veterinary Medicine, 2021
The object of research was the morphofunctional organization of the stomach and intestinal of the budgerigar (Melopsittacus undulatus) in the postnatal period of ontogenesis.
I. Yu. Lavrova   +4 more
doaj   +1 more source

Severe beak deformity in Melopsittacus undulatus caused by Knemidocoptes pilae [PDF]

open access: yes, 2014
Se describe un brote de sarna Knemidocoptic causada por Knemidocoptes pilae en periquitos australianos enjaulados (Melopsittacus undulatus), del parque público de L'Eliana (Valencia, España).
Carmona Salido, Víctor Jesús   +4 more
core   +1 more source

Multidrug resistant E. coli recovered from household reared female budgerigar pet bird (Melopsittacus undulatus) in Ibadan, Oyo State Nigeria: a case report

open access: yesBulletin of the National Research Centre, 2021
Background Pet birds are housed and reared exclusively for ornamental use. These include psittaciformes (parrots, parakeets, budgerigars, love birds) and passeriformes (e.g. canaries, finches, sparrows, also called songbirds). E.
Adelekan Oluseyi Okunlade   +2 more
doaj   +1 more source

Memory-specific correlated neuronal activity in higher-order auditory regions of a parrot

open access: yesScientific Reports, 2021
Male budgerigars (Melopsittacus undulatus) are open-ended learners that can learn to produce new vocalisations as adults. We investigated neuronal activation in male budgerigars using the expression of the protein products of the immediate early genes ...
Ryohei Satoh   +6 more
doaj   +1 more source

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