Separation of Willow Tit and Marsh Tit in Britain: a review 16 November 2009 Comments Main paper These sound files accompany a paper on the separation of Willow and Marsh Tits, published in BB in November 2009: ... Read More
Ageing and sexing of Asian chats: Siberian Rubythroat, Siberian Blue Robin, Rufous-tailed Robin and Red-flanked Bluetail 01 September 2009 Comments Main paper ... Read More
Identification of Dark-breasted Barn Owl in Britain 01 September 2009 Comments Main paper ... Read More
Evidence for age-dependent migration strategies in the Short-toed Eagle 01 September 2009 Comments Main paper ... Read More