Results 1 to 10 of about 1,117 (182)

Breeding biology of Great White Pelican Pelecanus onocrotalus at Lake Tana, Ethiopia [PDF]

open access: yesHeliyon
Great White Pelicans, once thriving at Lake Shala, have faced a decline in breeding pairs at Lake Abijata due to increased salinity and overfishing. A study at Lake Tana Biosphere, from December 2020 to December 2021, aimed to understand their breeding ...
Ahmed Yesuf Yimer   +4 more
doaj   +4 more sources

Feather Corticosterone Measurements and Behavioral Observations in the Great White Pelican (Pelecanus onocrotalus) Living under Different Flight Restraint Conditions in German Zoos [PDF]

open access: yesAnimals, 2021
The pinioning of birds was previously one of the most-accepted forms of mutilation in zoos. Despite a lack of knowledge on the effects of deflighting procedures with regard to the well-being of deflighted birds, pelicans are often reversibly deflighted ...
Gudrun Haase   +10 more
doaj   +2 more sources

Morphology, biology and taxonomy of Dendritobilharzia loossi Skrjabin, 1924 (Trematoda: Bilharziellidae), a parasite of Pelecanus onocrotalus (Pelecanidae) and Anas plathyrinchos (Anatidae) [PDF]

open access: yesParasite, 2011
Life cycles of Dendritobilharzia loossi Skrjabin, 1924, a parasite of waterbirds, and its morphobiological traits are studied and described. Mollusks Anisus spirorbis, the infection rate of which in natural environments reaches 1.3-1.9%, were recorded as
Akramova F.D.   +2 more
doaj   +2 more sources

Recombinase-aid amplification combined with lateral flow detection assay for sex identification of the great white pelican (Pelecanus onocrotalus) [PDF]

open access: yesScientific Reports
Sex identification in avian species is essential for biodiversity conservation and ecological studies. However, the sex of nearly half of the birds could not be identified based on their external appearance.
Fanwen Zeng   +7 more
doaj   +2 more sources

Effects of Flight Restraint and Housing Conditions on Feather Corticosterone in White Storks Under Human Care [PDF]

open access: yesAnimals
Flight is part of the natural behaviours of most bird species, and as a consequence, flight restraint in zoos, even for those species that are primarily ground-dwelling, encounters increasing animal welfare concerns.
Frederike Liermann   +6 more
doaj   +2 more sources

Avifaunal updated survey in St. Catherine protectorate, Egypt [PDF]

open access: yesJournal of Medical and Life Science, 2022
St. Catherine is a unique and remarkable stopover place for migratory birds and a high-quality resource habitat for resident birds. St. Catherine is an important bird area (IBA) and declared a protectorate.
Amir Soliman   +3 more
doaj   +1 more source

MYCOPLASMA INFECTION IN GREATER FLAMINGO, GREY CHINESE GOOSE AND WHITE PELICAN [PDF]

open access: yesVeterinary Medical Journal - Giza, 1996
A total of 134 zoo birds were examined for mycoplasma. Four out of 23 Greater flamingo (Phoenicopterus ruber roseus) were found to be infected with Mycoplasma gallisepticum (MG).
S. EL-SHATER
doaj   +1 more source

Some chewing lice (Phthiraptera) species as ectoparasites infested aquatic birds with a new record of three species from Al-Sanaf marsh/ southern Iraq [PDF]

open access: yesIraqi Journal of Veterinary Sciences, 2020
The present study was carried out to determine additional chewing lice of aquatic birds and additional data on the prevalence of chewing lice in aquatic birds found on the Southern marshes of Iraq.
Zainab A. Mohammad
doaj   +1 more source

Respiration and energetics of embryonic development in a large altricial bird, the Australian pelican (Pelecanus conspicillatus) [PDF]

open access: yes, 2002
We examined whether the previously reported low cost of embryonic development in pelicans could be attributed to a more efficient conversion of egg energy to hatchling tissues as a result of high initial egg water content, low embryonic metabolic rate ...
Baudinette, R.   +3 more
core   +1 more source

The historical and current distribution of Dalmatian Pelican Pelecanus crispus and Great White Pelican Pelecanus onocrotalus in Greece and adjacent areas: 1830-2019

open access: yesAvocetta, 2020
Evidence about the historical breeding distribution of Dalmatian Pelicans Pelecanus crispus and Great White Pelicans Pelecanus onocrotalus in Greece and an adjacent zone was sought in all historical scientific literature containing references to ...
George Handrinos, Giorgos Catsadorakis
doaj   +1 more source

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