Articles by author: Konstantin Popov

[2] (reverse chronological order)

Vagrant species of birds captured at Durankulak ringing camp, NE Bulgaria, 2019–2020
20 August 2021 · vol. 42 · pp. 89–94

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Recent changes in the presence status and numbers of ruddy shelduck (Tadorna ferruginea) in the Eastern Balkans
9 April 2020 · vol. 41 · pp. 41–49

— views: 347 · citations: 2