Vagrant species of birds captured at Durankulak ringing camp, NE Bulgaria, 2019–2020
Peter Shurulinkov; Patrick Bergkamp; Nikola Aleksandrov; Pavel Simeonov; Andrey Ralev; Petko Tsvetkov; Konstantin Popov; Girgina Daskalova; Katherine Dimitrova; Krassimir Hristov; Ivan Hristov; Jivko Gradinarov; Ivaylo Tonev; Boris Hotinov; Dimitar A. Dimitrov; Meinolf Ottensman; Tony Rinaud; Nayden Chakarov