42 Bulletin No. 20. 



Parula Warbler : May 10, two on the college campus ; and Mav 16, 

 again on the campus. 



Lincoln's Sparrow : May 12, one in Morgan's woods. A number 

 singing at the lake shore near Oak Point, May 17. 



Black Tern : May 15, one on the water-works reservoir. Several had 

 been seen by the engineer a few days previously. 



Gray-cheeked Thrush : May 17, one in the woods two miles south of 

 Oberlin. 



Least Bittern : May 28, two in the marshes at Oak Point. This is 

 the first ever seen alive by me. 



Thus three species have been added to my list of acquaintances with- 

 out going beyond the county limits. One of them, the Least Bittern, 

 has hitherto been overlooked thro lack of opportunity to search for him. 

 One, Bewick's Wren, is new to the county list. 



In this connection it is worth notice that the Bank and Rough-winged 

 Swallows can now be distinguished in the field without a gun. The gray 

 underparts of the Rough-wing are noticeably different from the white 

 banded underparts of the Bank. The ijiore deliberate movements and 

 slightly larger size of the Rough-wing are also good field characteristics. 



In addition to those already mentioned, the American Bittern and 

 Black and White Warbler have been heard in song for the first time. It 

 is also cause for congratulation that the songs of the two Cuckoos, and of 

 Wilson's and Olive-backed Thrushes can now be distinguished with cer- 

 tainty. 



Everything considered, the season just now closing has been the most 

 profitable one since my list of acquaintances passed the hundred mark, 

 and all of the work has been done without recourse to the shot-gun. Try 

 the field-glass; It pays ! 



SWALLOW INVESTIGATIONS. 



At the request of several members we have decided to continue the 

 Swallow study another year, and trust that this may give all a timely 

 notice that they may be prepared to help us out with copious notes at the 

 close of the season. For the benefit of those who have not already con- 

 tributed I would say that I desire notes particularly in regard to distribu- 

 tion, migration, nesting, food, and feeding habits, and any other matter 

 you may think of interest. 



I have already a large stock of notes, embracing nearly every state, 

 showing the distribution of the species. Still there is much lacking to 



