BRITISH BIRDS. 63 



Sp. 2. C. BEWICKII. Yarrell. 



s yn. Cygnus Bewickii, Yarr. Linn. Trans. Bewick's Swan, Fair. 

 Eyton. 



ADDENDA. 



GENUS SYRNIUM. 



Sp. 2. S. TENGMALMI. Linnaeus. 



Syn. Strix Tengmalmi, Linn. Temm. Vieill. Faun. Bo. Amer. Teng- 

 malm's Owl, Eyton, Addenda. 



GENUS TURDUS. 

 Sp. 7. T. WHITEI. Nobis. 



Syn. White's Thrush, Eyton, Addenda. 



CATALOGUE 



OF 



Extinct Species. 



GENUS TETRAO. 



Sp. T. UROGALLUS. Linnceus. 



Syn. Tetrao Urogallus, Gmel. Lath. Tetras Auerhan, Temm. Wood 

 Grouse, English Authors. 



Sp. T. M EDI us. Meyer. 

 Syn. Tetrao Hybridus, Sparm. Tetras Rakkelhan, Temm. 



