Circus aeruginosus

(Marsh Harrier, Busard des roseaux, Rohrweihe, Aguilucho lagunero occidental)

Example 1 P105-0570  
Date 02.10.2003

Location Protected Area Poda, District Burgas (Bulgaria)
Origin Moulting feather
Age and sex Female or juvenile
Feathers 10th Primary of the right wing (228 mm)
Literature  

Species List
     
Literature R. Brown, J. Ferguson, M. Lawrence, D. Lees, Federn, Spuren und Zeichen der Vögel Europas, Aula-Verlag, Wiebelsheim 2003, page 252-253

M. Cieslak, B. Dul, Feathers - Identification for Bird Conservation, Natura Publishing House, Warsaw 2006, Page 122-125

R. März, Gewöll- und Rupfungskunde, Akademie-Verlag, Berlin 1987, page 196-197