مرزة البطائح

The western marsh harrier (Circus aeruginosus) is a large harrier, a bird of prey from temperate and subtropical western Eurasia and adjacent Africa. It is also known as the Eurasian marsh harrier. Formerly, a number of relatives were included in C. aeruginosus, which was then known as "marsh harrier". The related taxa are now generally considered to be separate species: the eastern marsh harrier (C. spilonotus), the Papuan harrier (C. spilothorax) of eastern Asia and the Wallacea, the swamp harrier (C. approximans) of Australasia and the Madagascar marsh harrier (C. maillardi) of the western Indian Ocean islands.

مرزة البطائح
Conservation status
Least Concern (IUCN 3.1)
التصنيف العلمي
أصنوفة غير معروفة (أصلحها):	Circus
Species:	Template:Taxonomy/CircusC. aeruginosus
Binomial name
Template:Taxonomy/CircusCircus aeruginosus (Linnaeus, 1758)
Subspecies
C. a. aeruginosus - (Linnaeus, 1758) C. a. harterti - Zedlitz, 1914
Range of C. aeruginosus      Breeding      Resident      Non-breeding      Vagrant (seasonality uncertain)
Synonyms
Falco aeruginosus Linnaeus, 1758

The western marsh harrier is often divided into two subspecies, the widely migratory C. a. aeruginosus which is found across most of its range, and C. a. harterti which is resident all-year in north-west Africa.

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 التوزيع والموئل

مرزة البطائح من الطيور التي تمر عبر مصر بأعداد كبيرة في موسم هجرتها. وتقضي أعداد منها فصل الشتاء في مصر، وتعود مرة أخرى لمناطق التعيش في فصل الربيع

 السلوك والبيئة

 هوامش

• American Ornithologists' Union (2000). "Forty-second supplement to the American Ornithologists' Union Check-list of North American Birds" (PDF). Auk. 117 (3): 847–858. doi:10.1642/0004-8038(2000)117[0847:FSSTTA]2.0.CO;2.
• Banks, Richard C.; Cicero, Carla; Dunn, Jon L.; Kratter, Andrew W.; Rasmussen, Pamela C.; Remsen, J.V. Jr.; Rising, James D.; Stotz, Douglas F. (2005). "Forty-sixth supplement to the American Ornithologists' Union Check-list of North American Birds" (PDF). Auk. 122 (3): 1026–1031. doi:10.1642/0004-8038(2005)122[1026:FSTTAO]2.0.CO;2.
• Clarke, R.; Prakash, V.; Clark, W.S.; Ramesh, N.; Scott, D. (1998). "World record count of roosting harriers Circus in Blackbuck National Park, Velavadar, Gujarat, north-west India" (PDF). Forktail. 14: 70–71.
• Merkord, Christopher L.; Rodríguez, Rafy; Faaborg, John (2006). "Second and third records of Western Marsh-Harrier (Circus aeruginosus) for the Western Hemisphere in Puerto Rico" (PDF). Journal of Caribbean Ornithology. 19 (1): 42–44.
• Verma, Ashok (2002). "A large roost of Eurasian Marsh Harriers Circus aeruginosus at Keoladeo National Park, Bharatpur, India" (PDF). Forktail. 18: 150–151.

 قراءات اضافية

• Clarke, Roger (1995). The Marsh Harrier. London: Hamlyn. ISBN 978-0600583011.
• Forsman, Dick (1999). The Raptors of Europe and The Middle East: a Handbook of Field Identification. London: T. & A.D. Poyser.
• Snow, David W.; Perrins, Christopher M., eds. (1998). The Birds of the Western Palearctic. Vol. Vol. 1 (Concise ed.). Oxford University Press. ISBN 0-19-854099-X. {{cite book}}: |volume= has extra text (help)

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 وصلات خارجية

• Marsh harrier at RSPB's Birds by Name
• Birds of Britain - Marsh Harrier
• Western Marsh Harrier or European Marsh Harrier species text in The Atlas of Southern African Birds
• Western Marsh-Harrier text, map & photos at Oiseaux.net
• Ageing and sexing (PDF; 5.7 MB) by Javier Blasco-Zumeta & Gerd-Michael Heinze
• BirdLife species factsheet for Circus aeruginosus
• "Circus aeruginosus". Avibase.
• "Western Marsh-harrier media". Internet Bird Collection.
• مرزة البطائح photo gallery at VIREO (Drexel University)
• Audio recordings of Western Marsh Harrier on Xeno-canto.