60 CRUISE OP STEAMER CORWIN IN THE ARCTIC OCEAN. 



supposed to result from its passage westward along tbe northern shore of America from Greenland 

 and its adjoining habitat, evidently entering Northern Alaska and perhaps Northeastern Asia 

 from Europe by way of the Northwest Passage. 



SYLVIIDJS. OLD-WORLD WARBLERS. 



sylvai eversmanni. 



(8.) Eveksmaun's Warbler. 



Flocks of this small bird came during the middle of June and settled on the Vega at Tapkan, 

 her winter quarters, northwest of the Straits. This was before the ground was free from snow, 

 and the birds api)eared to be much exhausted. 



PHYLLOSCOPUS BOREALIS (Bias.) Dresser. 



(9.) Kennicotx's Warbler. 



The first American specimen of this Siberian Warbler was taken by the naturalist of the 

 Western Union Telegraph Expedition at Saint Michael's, Norton Sound, in ISGii. Since then no 

 others have been secured until the three specimens I had the good fortune to obtain at the same 

 locality during my residence at that place. Its recurrence appears to be very irregular, as it was 

 found only in two seasons out of four, during which I kept a sharp lookout and had native 

 collectors searching for them, but obtained and saw only the examples mentioned. It has never 

 been taken on the Siberian sliore of the region covered by this paper, but further towards 

 Middle Siberia it is known to be common, extending its summer range to the vicinity of the Arctic 

 Circle, i)assing south tlirough Eastern and Central Asia in its autumnal migration. In the region 

 of Lake Baikal it is a common migrant, as well as further east in Siberia. How gen eral its range in 

 Northeastern Siberia is can only be determined when the numerous ornithological problems of 

 that country are solved by the work of some ornithologist. 



PARID^. TITMICE. 

 PARUS ATRICAPILLUS SEPTENTRIONALIS (Harris.) Allen. 



(10.) The Long-Tailed Chickadee. 



An irregular visitor to the Alaskan shore of Bering Sea, mainly about Norton and Kotzebue 

 Sounds, where it is not a raie bird in the fall and at times also in the spring. But it is never 

 resident here, owing to the lack of suitable shelter. 



PARUS CINCTUS GRISESCENS, Sharp & Dresser. 



(11.) The Siberian Chickadee. 



Though to be accounted a Siberian species by right of general distribution and priority of 

 discovery, yet this little Chickadee makes its home among the siu'uce and paper-birch forests of 

 Northern Alaska, and like the preceding makes occasional excursions to the adjoining coasts and 

 comes familiarly about the houses, where it enlivenes the gloomy opening of the long cheerless 

 winter or breaks into the monotony of the silent frosty days later in the season. 



Although Mr. Ridgway identified the original American specimens of this bird as typical 

 Parus cinctus, a more careful examination of a much larger series made by myself shows that it is 

 really referable to the much grayer and somewhat larger Eastern Siberian form, described in 

 " Dresser's Birds of Euroije," and to which all American specimens should be referred. 



PARUS HUDSONICUS Porst. 



(12.) The Hudsonian Chickadee. 



This bird is the third and last of a band of active, cheerful wood-sprites, whose busy notes 

 and amusing motions while playing at gymnastics, as they rove in merry troops through the wood- 



