Ornithological Researches in Siberia. 229 



5. Harelda glacialis. — Everywhere common from the 

 5/18 June onwards. 



6. Somateria stelleri. — Only single males were seen and 

 shot at the winter-quarters, on the r g^p , but on the 15/28 

 August an old female was obtained out of a flock of seven. 



7. Somateria spectabilis. — Not uncommon on the small 

 Tundra-lakes and on the sea, the first arriving on the 10/23 

 June. Late in June complete clutches of eggs Avere found. 



8. Lagopus mutus. — First seen on the 17/30 April. At 

 the end of May these birds were in full breeding-play, the 

 males being still in complete winter-dress or with only a few 

 brown feathers on the neck, whereas the females were in full 

 moult. In the middle of July the young were half-grown. 



9. Strepsilas interpres. — One of the commonest of 



,,...,..,.. . ,, 28 May 



breeding birds m the district, appearing on the ^ j ul i e " 



When the young were fledged, in the middle of July, both 

 they and the old birds disappeared, and only stragglers were 

 seen later. 



10. Squatarola helvetica. — Found nesting everywhere, 

 though not in large numbers, on the Tundra. They arrived 



on the 5/18 June, and on the ^gp and the 2/15 July nests 



contained four eggs each. The old birds, even at the nest, 

 were very shy. 



11. Eudromias morinellus, which was much less common 

 than the preceding species, arrived late in May. On the 



,, T ' a nest contained three incubated eggs, and another 

 11 July 



four much incubated. 



12. Limosa lapponica. — Did not breed in the district, 

 but passed over after the - 2 . " n in large flocks, which were 



composed of old males and females. After the y } . ^ a few 

 young birds were seen. 



13. Calidris arenaria appeared about the ~„ I -'• , and in 



