140 Wood ATSsoTm-KER, Rarer Birds of Michigan. [Aril 



was again noted on July 3, 1909, by F. Novy. It is quite possible 

 that the Chat bred in this vicinity in the summer of 1909, but of 

 this we have no definite evidence. 



Wilsonia pusilla. Wilson's Warbler. — Covert says of this 

 species, "Very common during spring and fall, some remain with 

 us all summer." Our present records certainly do not confirm this 

 statement, and we very much doubt if the species was ever a summer 

 resident here. At the present time it is a rare migrant both in 

 spring and fall, but is much more so in the fall. Our earliest spring 

 record is May 11 (1904). In 1903, the species was recorded on 

 May 22, when J. J. Ricks secured a fine male at Portage Lake. 

 On May 11, 1904, Wood secured a male in a swamp east of Ann 

 Arbor, and noted another in the same locality on May 12. In 1906, 

 but one record was secured — May 17. 



In 1907, the species was unusually abundant. It first made its 

 appearance on May 28, and continued with us in varying numbers 

 up to June 9, being noted almost daily between these dates. In 

 1908, it was about normally abundant, being first recorded on May 

 15 and remaining until the 19th. In 1909, the species was first 

 noted on May 18, and on the 19th Wood found it quite abundant 

 along the river: it was observed in limited numbers until IMay 23. 



Our only fall records are September 8, 1907, and October 7, 

 1908. From the foregoing, it can readily be seen that the species 

 is much less common in the fall than during the spring migration. 

 Moreover it is very local in its occurrence here; never being found 

 far from water. 



Wilsonia canadensis. Canadian Warbler. — Of this warbler 

 Covert says, "A very common migrant, frequently remaining all 

 summer." We have never found the Canadian Warbler in summer, 

 although it has been observed late in ^lay and occasionally is rather 

 common at that time. However, the species is not generally dis- 

 tributed over the County during the migrations, but rather local, 

 so we may have overlooked it. 



Our earliest spring record is that of May 1 (1888) and our latest 

 June 2 (1907). In the spring of 1907, the species was with us from 

 May 13 to June 2, and was unusually abundant during the entire 

 period. In the spring of 1908, it was first noted on May 11, and 

 continued with us in limited numbers up to May 18. In 1909, it 



