OF ILLINOIS BIRDS 



Franklin's Gull. 



Rare straggler from the in- 

 terior. Recorded by Ridg- 

 way from near Warsaw on 

 the positive authority of 

 Worthen. 



Sight records, although for 

 the most part of young, 

 winter-plumaged, or im- 

 mature birds, but unques- 

 tionably referable to this 

 gull, were made by Lewis, 

 Watson and the writer at 

 Lincoln Park, Chicago dur- 

 ing the present fall season 

 of 1921. 



Bonaparte's Gull. T.V. 



Common as a migrant, 

 even abundant on Lake 

 Michigan, where a few also 

 have been reported as win- 

 tering. It also summers, 

 at least occasionally, in 

 considerable numbers, 

 within our limits on Lake 

 Michigan. 



Sabine's Gull. 



Accidental visitant to Lake 

 Michigan and Mississippi 

 River from the Arctic re- 

 gions. Records from near 

 Chicago (Nelson), and 

 Warsaw (Fleming). 



Gull-billed Tern. 



Of exceedingly rare and 

 questionable occurrence on 

 Lake Michigan. Positive 

 records lacking although 

 listed by both Nelson and 

 Ridgway. 



Caspian Tern. T.V. 



Apparently of regular but 

 not common occurrence 

 within our limits on Lake 

 Michigan. 



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