The birds of Pasvik / E. I. Khlebosolov, O. A. Makarova, O. A. Khlebosolova [et al. ; English transl. Nikita Chernetsov]. - Ryazan : Golosgubernii, 2007. - 175 с. : ил., портр.

Table 1.1. N um bers o f waterfowl recorded in Pasvik river in 1996—2005. Species 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 Greater Cormorant (Phalacracorax carbo) 1 0 0 0 0 3 0 0 0 0 Black-throated Diver (Gavia arctica) 21 7 11 12 16 12 8 6 12 13 Red-throated Diver (Gavia stellata) 2 2 0 0 4 0 0 1 2 5 Whooper Swan (Cygnus cygnus) 24 8 19 23 1 50 43 83 70 48 Bean Goose (Anserfabalis) 0 0 0 7 3 78 1 2 30 3 Eurasian Wigeon (Anas penelope) 132 122 104 113 103 188 239 196 282 68 Gadwall (Anas strepera) 0 0 0 2 0 0 0 0 0 0 Eurasian Teal (Anas crecca) 52 10 18 58 13 29 18 14 32 18 Garganey (Anas querquedula) 0 0 0 2 0 0 0 0 0 0 Mallard (Anas platyrhynchos) 18 11 13 32 6 26 29 24 34 22 Pintail (Anas acuta) 4 3 2 12 2 12 16 8 13 2 Shoveler (Anas clypeata) 0 2 2 0 0 0 3 0 12 2 Tufted Duck (Aythyafuligula) 130+ 7 9 48 6 28 64 26 25 43 Greater Scaup (Aythya marila) 0 0 2 0 0 3 1 0 2 13 Long-tailed Duck (Clangula hyemalis) 6 0 11 0 0 0 0 0 2 41 Black Scoter (Melanitta nigra) 45 7 12 35 300+ 12 67 18 35 56 Velvet Scoter (Melanittafusca) 29 0 5 0 23 2 7 2 51 23 Common Goldeneye (Bucephala clangula) 163 128 233 155 250+ 172 246 140 116 83 Smew (Mergus albellus) 23 7 15 15 9 16 32 21 22 49 Red-breasted Merganser (Mergus senator) 39 12 12 19 19 39 34 54 29 41 Common Merganser (Mergus merganser) 45 10 48 36 13 32 31 24 24 26 59