WOOD THRUSH 119 



were tolerated, and tbat Lynds Jones knew a case in which the wood 

 thrush tried to throw the cowbird egg out. 



Wood thrushes seem to be fairly free from external parasites, as 

 none were found on the many birds handled during the study made 

 by the author. There were indications at times that the adults 

 picked them from the nest; one time, after picking in the nest, the 

 adult put her bill into the mouth of a young bird seeming to feed it. 

 Peters (1936) lists two parasites found on this species, one a louse 

 (Myrsidea incerta (Kellogg)), on a specimen from New York, and 

 a tick (Haemaphysalis leporis-palustris Packard), on a specimen from 

 North Carolina. 



A study of the Federal Government's records of bird-banding 

 shows that, up to May 1936, the oldest banded wood thrush was 

 six years old. From my own records, I had a bird three years old, 

 which nested in the same vicinity each of the three years. 



Fall. — Kecords of the United States Fish and Wildlife Service were 

 studied to make this summary of fall migration. In the Atlantic 

 flyway in September, wood thrushes are still in their summer range, 

 being found as far north as they were during the summer months, 

 although there is no way of telling in what numbers they are present. 

 The autumn migration begins in October. The northernmost records 

 for October are one for Maine, one for central Vermont, and one for 

 New Haven, Conn. They are still numerous in New York, Pennsyl- 

 vania, New Jersey, and the District of Columbia. In November there 

 are about a dozen records of birds in the United States, so that by 

 this time most birds have left our country. The first actual record 

 of a bird south of the United States is one for Almirante, Panama, on 

 October 30. 



In the Mississippi flyway in September, wood thrushes are still as far 

 north as they were during the summer, being found in Ontario, but 

 October records show a southward movement. The last fall record is 

 at Ozark Beach, Mo., on October 27. 



There were only six records on file of fall dates in the Western 

 flyway. In September a record was made in Sioux Falls, S. Dak. 

 The last fall record was made at Independence, Kans., near the end 

 of October. 



In comparing these data we find that wood thrushes remain longest 

 in the United States in the Atlantic Coast States. 



There is an interesting note by Weston (1935) about the fall migra- 

 tion of wood thrushes at Pensacola, Fla.: "A heavy flight of wood 

 thrushes filled the swamps with birds on October 13." The latest 

 date given by Howell (1932) for Florida is October 14. 



In Ithaca, N. Y., the latest fall record is September 18. 



