244 ON THE MIGRxVTION OF BIRDS 



numerous waders arrived, and were busily feeding upon the banks. We 

 saw a pair of Oystercatchers, and shot some Ringed Plovers, Wood-Sand- 

 pipers, and Temminck's Stints. On this day we also saw the first Barn- 

 Swallow. 



On the 29th we shot the only Sparrow- Hawk we saw during our 

 journey, and consequently cannot attach much importance to the date. 



On the 31st we made the acquaintance of the first Little Bunting 

 QEmheriza pusilld). 



On the 1st of June we identified a Black Scoter, a duck which we 

 afterwards found very common. 



The 3rd, 4th, and 5th of June we spent at Habariki, twenty-five miles 

 down the river, and added a dozen fresh birds to our list. Some of these, 

 as the Hobby and the Waxwing, were so rare that they might have arrived 

 some time before we saw them. Others, as the common Snipe, the Ruff, 

 the Goosander, the Smew, and the Golden-eye, had probably been some days 

 comparatively common in this locality, but, from their extreme rareness at 

 Ust Zylma, had escaped our notice. On the other hand, the Cuckoo, 

 Double Snipe, Terek Sandpiper, and Black-throated Diver may fairly be 

 supposed to have arrived about the 3rd of June. 



On the 7th of June we saw a pair of Scarlet Bullfinches, on the 8th 

 a Little Ringed Plover, and on the 10th a Sand-Martin ; but as these were 

 the only examples we saw in the district, we cannot speak with any certainty 

 as to the earliest date of arrival. This completes the list of birds wdiich we 

 had good reason to believe to be migratory in the Ust-Zylma district. 

 Leaving out those to which, from their rarity or localness considerable 

 doubt attaches as to the date of arrival, we obtain the following list : — 



April 1. Snow-Bunting. May 10. Shore-Lark. 



„ 1. Lesser Redpole. „ 10. Snowy Owl. 



„ 1. Mealy Redpole. 

 May 4. Hen-Harrier. 

 „ 5. Merlin. 



„ 10. Bean-Goose. 



11. Wild Swan. 

 11. Bewick's Swan. 



11. Arctic Herring-Gull. 



12. White Wagtail. 



