6 THE AMERICAN MIDLAND NATURALIST 



Occasionally visited the area back of oar ho ise, but we have 

 no definite dates. 



30. Lucar carolinensis. Catbird. 



Seen only during April and May, and very irregular during even 

 these months. It was earliest noted on April 24, 191 7, and latest, 

 May 31, 1914. 



31. Sialia sialis sialis. Bluebird. 



Of occasional occurrence from September to May, but most 

 frequently seen during the months of September, October, and 

 March. Our only other records are for May 13, 191 2, and Febrrary 

 27, 1917. 



32. Planesticus migratorius achrusterus. Southern Robin. 

 Common from March to October, and perhaps once in a while 



nested within the area. Observed on February 14, 1915, and as 

 late as October 27, 191 7, but never in November, December, or 

 January. Some of the autumn records probably refer to the 

 Northern Robin, Planesticus migratorius migratorius. 



33. Hylocichla fuscescens fuscescens. Wilson Thrush. 



One seen in the tall tree in our yard. May 13, 1912, but on no 

 other occasion. 



34. Hylocichla guttata pallasii. Hermit Thrush. 



Our only record is one individual seen on September 21, 191 7. 

 This, however, is an unusually early date for the species in the 

 vicinity of Washington, as its average arrival here is October 17, 

 and the very earliest previously recorded date is September 18, 

 1900. 



35. Hylocichla aliciae aliciae. Gray-cheeked Thrush. 



This species was seen on September 18, 191 7; September 21, 

 191 7; and October 4, 191 7. Five individuals, also, were noted in 

 our large silver poplar tree on September 26, 1916. The records 

 for September 18 and 21 are unusually early for the vicinity of 

 Washington, as the average autumn arrival of this species is Septem- 

 ber 25, and its earliest date, September 15, 1897. 



36. Hylocichla ustulata swainsoni. Olive-backed Thrush. 



This species is of much more frequent occurrence than the Gray- 

 cheeked Thrush. It has been noted from May 13 (1912) to May 

 25 (1916); and from September 15 (1915) to October 4 (1917)- 

 It was heard on May 21, 191 5, singing almost as well as in summer. 



