Marsh and common tern (Birds of Russia) Movie 86

Marsh and common tern (Birds of Russia) Movie 86
0:00 Credits
0:22 Types of terns
0:58 The external difference between the white-winged tern and the black black
1:18 External difference between barnacle and river
1:37 External difference between the little tern and the common tern
2:16 Marsh tern nests
3:14 Common tern nests
3:53 Little tern chicks
4:55 White-winged tern chicks
5:45 What do marsh terns eat and how do they get them
6:31 What do common terns eat and how do they get them
7:25 Where terns bathe
7:35 Aggressiveness of terns
8:15 When young terns become independent