the Banks of the Lena River. 427 



26. Milvus melanotis Temm. & Schleg. 



Milvus melanotis Temminck & Schlegel, Siebold's Fauna 

 Japon., Aves, p. 14, pis. 5, 5 b (1844: Japan). 



S ad. Lena River, 30. vi. 1903. " Iris dull yellow ; bill 

 blackish, cere bluish; legs bluish, nails black." (No. 155.) 



I am not certain that M. melanotis is a representative of 

 the ko?*schun-group. 



27. Falco peregrinus leucogenys Brehm. 



Falco leuco-genys Brehm, Naumannia, 1854, p. 51 (first 

 description, apparently from stray birds from Germany, 

 but locality not mentioned) (cf. Menzbier, Ibis, 1884, 

 p. 284). 



? ad. Between Gigansk and Bulun, 21. vii. 1903. (No. 

 318.) "Iris brown." 



Pullus (young of the above). (No. 319.) "Eye bluish, 

 cere bluish creamy ; bill, legs, and nails delicate bluish creamy, 

 with a deeper tinge of blue on the nails." 



[Three nests of this Hawk were observed in the cliffs 

 between Yakutsk and Bulun. One found at Gigansk con- 

 tained three young. They were simply lying upon the 

 sand on a ledge of the river-cliff, which, in this case, was 

 easily accessible. The accumulated debris of the sandstone 

 was their only bed. Two of the young are to be reared by the 

 captain of our steamboat for falconry purposes in Yakutsk. 

 In the example secured I find that the middle toe of the left 

 foot shews an old break and a setting of the bone at right 

 angles.] 



28. Cerchneis vespertinus amurensis (Radde). 



Falco vespertinus var. amurensis Radde, Reisen in O.-Sibi- 

 rien, ii. p. 102, pi. 1 (1863). 



? ad. Zarkarminski, 8. vi. 1903. "Legs and feet orange; 

 bill bluish, merging into yellowish at base; iris hazel." 



29. Asio otus (L.) (?subsp.). 



Strix otus Linnaeus, Syst. Nat. ed. x. p. 92 (1758 : " Hab. 

 in Europa." Typ. loc. Sweden). 



Ad. (not sexed). Prokofskoa, Lena River, 4. viii. 1903. 

 (No. 364.) 



2h 2 



