Common Swift - Photo (c) Alexei Ebel, some rights reserved (CC BY-NC) White Wagtail - Photo (c) avepel, some rights reserved (CC BY-NC) Eurasian Tree Sparrow - Photo (c) Татьяна Спицына, all rights reserved House Sparrow - Photo (c) Ximo Galarza, some rights reserved (CC BY-NC-SA)
4 of 4 observed