1158 EEPORT OF STATE GEOLOGIST. 



come common that month sometimes within a few days after the 

 migrants are first noted. In the center of the State,, in general, they 

 may be looked for near the middle of February, and to become com- 

 mon within the next two weeks. In the northern counties the aver- 

 age arrival is about March 10, a little later in the vicinity of Chicago, 

 and they are common about the 25th of that month. The following 

 are the early and late first appearances of migrants: Brookville, Janu- 

 ary 17, 1897, February 23, 1885; Greensburg, February 23, 1894; 

 Greencastle, February 11, 1893, March l r 1896; Lafayette, February 

 1, 1897, March 23, 1895; Sedan, February 28, 1896, March 18. 1895; 

 Laporte, March 2, 1893, March 16, 1896; Chicago, 111.. March 3, 



American Robin. 

 (Beal.-Farmers' Bulletin 54, United States Department of Agriculture.) 



1894, March 27, 1895; Petersburg, Mich., February 26, 1893, March 

 9, 1897. At Brookville I have found the migrants in flocks in the 

 woods making their way north so late as April 2 (1896), when the local 

 summer residents were nest building. Within the last few years they 

 remained through the winter of 1894-5 in favorable locations over 

 southern Indiana as far north as Greensburg (Shannon) and Green- 

 castle (Earlle). The most general distribution of Eobins in winter 

 occurred the past winter (1896-7). That year they were found 

 throughout Indiana into northern Illinois and southern Michigan. 

 They were reported from Hanover (Culbertson), on the Ohio Kiver; 

 from Greensburg, where a flock' of five hundred was seen December 

 396 (Shannon). They were observed at Waterloo (Keep) and 

 Sedan (Mrs. Hine). At Angola they were abundant all winter, feed- 



