were all there, still covcrt'd wirli down. l)ut when the nest was disturbed, 

 two eggs rolled out of the fearliers about the nest. 



■•I have known tlu-ni in full song March S. * * * After the harvest 

 is over and the young are able to take care of themselves, most of the 

 Meadowlarks seek choice spots, and but seldom are their songs heard" 

 (Butler). Butler also mentions hearing their song in September and 

 November. The writer has heard them singing every month in the year, 

 nine of which are spent in this region. Following are some dates for 

 Bloomington: !t-2.s: lU-12: 11-8; llMS. '02; 1-24; 2-26; 3-2; 4-3; 5-1; G-9, '03. 



The Meadowlark is another l)ird which migrates considerably by day. 

 The immense, noisy Hocks of Felirnary and March are always on the 

 move. Fifty of these birds were seen as early as January 21, 1903, flying 

 over due north at a height which made it necessary to use a powerful 

 field-glass to identify tlicm. 



This species, as well as most of the members of the family Ictcridae. is 

 noted for its gregarious haldts. That the different species should show 

 such habits inttr si: as do tlie swallows, is a more remarkable thing. 

 That this seems to be the case is the only logical conclusion to be drawn 

 from a study of lucal migration schedules. For instance, for a few days 

 pinnious to March 21. r.»(i;!. iNIeadowlarks and Grackles, both resident 

 species wei'e the only Irtviiila- seen. On the 21st, however, these species 

 became augumented in numbers while Rusty Grackles, Redwings and 

 Cowbirds, not seen for several days l)efore. again made their appearance 

 in considerable numbers. This fanuly migration is to be observed in the 

 IrirrhUr at the time thi' s])ecies liecome abumlant and not at their first 

 arrival. The Orioles move together in the same way and become numer- 

 ous at about the same time. 

 102. [506] Ideruii xjiiirlnx (lAnu.). Orchard Oriole.* 



Common summer resident, abundant and conspicuous during the 

 spring migration. April 17 to August 'JJ). These dates are each one day 

 earlier than the recorded limits of its stay in the State. Six years out of 

 ten, this species arrived before the Baltimore Oriole. This is a somewhat 

 different proportion than the two out of fifteen obtained by A. W. Butler. 

 The difference may be explained by a change in habit, as the dates of 

 arrival of the Orchard Oriole ))efore that of its relative are all included 

 in the last seven years in \\ hich observations have been made at this 

 point. This change in date of arrival is prnl)ably correlated with tlu' 



