Results 41 to 50 of about 1,339 (222)

Natural expansion versus translocation in a previously human-persecuted bird of prey [PDF]

open access: yes, 2017
Many threatened species in Europe have been expanding their distributions during recent decades owing to protection measures that overcome historical human activity that has limited their distributions.
Armstrong   +51 more
core   +1 more source

On the Natal Philopatry of the Eastern Imperial Eagle of the Volga Population

open access: yesПернатые хищники и их охрана, 2023
Population structure across the range of the Eastern Imperial Eagle (Aquila heliaca) remains one of the controversial issues that can be resolved by data on the distribution of juveniles from different points in the range.
Mikhail V. Korepov
doaj   +1 more source

Wintering Birds in Northern Saudi Arabia: February 2009 [PDF]

open access: yes, 2011
The northern plains of Saudi Arabia are an area of approximately 231,000 km2, or roughly equivalent to the size of the whole of the United Kingdom. During previous ABBA Surveys in this area in late winter and spring significant numbers of wintering ...
Abu Qabous, Baleegh   +3 more
core  

New Records of Raptors in Eastern Kazakhstan

open access: yesПернатые хищники и их охрана, 2014
In this article we describe our data on observations of birds of prey in Eastern-Kazakhstan Upland and Northern Balkhash Lake area collected mostly in 2013, May–June and September, and also in 2012, March and May.
Anna N. Barashkova, Ilya E. Smelansky
doaj   +1 more source

Rerults of work of the Raptor Ringing Center of the Russian Raptor Research and Conservation Network in 2014

open access: yesПернатые хищники и их охрана, 2015
In work of the Raptor Ringing Center of the Russian Raptor Research and Conservation Network in 2014 participated 39 ornithologists-researchers and birdwatchers who have ringed in total 889 individuals of 23 species of birds of prey (Falconiformers) and ...
Igor V. Karyakin   +7 more
doaj   +1 more source

Revista de Vertebrados de la Estación Biológica de Doñana [PDF]

open access: yes, 1976
Dimorfismo sexual en Microtus cabrerae en base a los caracteres de su pelvis.Notas sobre la distribución y ecología de Microtus cabreae, Thomas, 1906.Alimentación de la culebra bastarda (Malpolon monspessulanus, Ophidia, Colubridae) en el S. O. de España.
Ayarzagüena, José   +13 more
core  

Non‐Passerine Birds in Zoos: A Global Approach on Distribution Patterns of Threatened Birds in Zoological Institutions 动物园中非雀形目鸟类:全球动物机构中受威胁鸟类的分布模式研究

open access: yesIntegrative Conservation, Volume 4, Issue 4, Page 600-615, December 2025.
Only 1541 (34.2%) of 4503 recognized non‐passerine bird species are held in ZIMS institutions worldwide. Approximately ~83% of the species kept globally are classified as non‐threatened and ~16% as threatened. To improve the conservation of threatened birds, a shift toward keeping threatened species should be considered within ex situ management ...
Anna Wahle   +6 more
wiley   +1 more source

Представители родов Aquila и Haliaeetus в гнездовой фауне Центрального Черноземья: современное со-стояние и перспективы существования

open access: yesПернатые хищники и их охрана, 2018
В работе рассматривается распространение и численность большого подорлика (Aquila clanga), малого подорлика (Aquila pomarina), орла-могильника (Aquila heliaca) и орлана-белохвоста (Haliаeetus albicilla).
Alexander Yu. Sokolov   +2 more
doaj  

The first documentation of a juvenile eastern imperial eagle (Aquila heliaca) with an unstreaked body

open access: yesRaptor Journal
An extremely pale juvenile eastern imperial eagle (Aquila heliaca) without the typical dark streaking of the body was observed and photographed wintering in Oman.
Angelov Ivaylo
doaj   +1 more source

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