8 BIRDS OF NELSON COUNTY. 



2. Sylocichh fuscescens (Steph.). Wilson's Thrush. 



Transient ; uncommon in April and May. I have only 

 seen this bird upon two occasions in the spring, and have 

 never recognized it at all in thd faU. It breeds in the 

 northern part of the United States and in Canada. 



3. Hylocicbla alicise Baird. Grey-cheeked Thrush. 



Transient ; common during the last week of April and 

 the first week of May. Generally found in company with 

 the next, which it much resembles, as I have taken speci- 

 mens that gave me considerable trouble to distinguish 

 from the other sort. 



4. Sylocichh ustulata swainsoni (Caban.). OUve-backed 



Thrush. 

 Transient. The most abundant of the thrushes during 

 the migrations, except the robin. A few stragglers are 

 seen as late as May 20th. 



5. Eylocichla unalascsB pallasi (Caban.). Hermit Thrush. 



Transient ; common ; arrives last of March ; leaves for 

 the South about November 1st. It is highly probable 

 that a few of these thrushes winter here in sheltered 

 places, as I have found them common at the same latitude 

 in Maryland, where the temperature was as low as 6° Fah., 

 and they are known to winter north of here in Illinois. 



Genus Merula. 



6. * Morula migratoria (Linn). American Robin. 



A permanent resident. It is quite likely that the Robins 

 we see during winter leave in the spring, and are suc- 

 ceeded by birds that have wintered farther South. On 

 the 15th of February, 1881, immense numbers of these 

 began to congregate in the dense cedar groves near Fred- 

 ricksburg, in Washington county, nine miles from Bards- 



