164 AMERICAN MIDLAND NATURALIST 



days as the greatest difference in the earliest and latest dates of 

 migration. The second and fourth weeks in April and the first 

 week in May were the times of arrival for this species. 



The Cardinal is really not a migrating species, but is very 

 locally distributed at every season of the year, especially in winter. 

 Unless the observer visits a river or swamp, he may fail to find 

 a single individual for months together. During the spring of 

 19 13, I head the Cardinal's note only on one occasion — when I 

 went to the St. Joseph River early in May. 



The House Wren, Yellow Palm Warbler, Chimney Swift, 

 Yellow Warbler, Baltimore Oriole, Rose-breasted Grosbeak, 

 Warbling Vireo, Orchard Oriole, Kingbird, Black-throated Blue 

 Warbler, Catbird, Bobolink, Purple Martin, Bay-breasted Warbler, 

 Canadian Warbler, Least Flycatcher, Red-eyed Vireo, Cedarbird 

 and Yellow-billed Cuckoo — all show regularity in their dates of 

 migration, there being not more than 8 days between the earliest 

 and latest date of arrival. 



The Indigo Bird arrived, in the four years, in the first, second 

 and third weeks of May, with the greatest difference 12 days. The 

 Maryland Yellowthroat arrived" in the second and fourth weeks 

 of May. The Redstart came the last week in April and the first 

 and second weeks in May, with 17 days between the earliest and 

 latest date. 



The Dickcissel arrived two years in the second week in May 

 and one year in the third week, no record of the species having 

 been made at any time in 19 12. This bird, like the Purple Finch, 

 does not appear some years. 



The Nighthawk and Whip-poor-will show irregularity in their 

 times of migration. In the case of the latter species, however, I 

 think my dates are not correct; for my observations in spring 

 were made in woods near a town, which this migrant does not 

 enter, except rarely. I should put the true time of arrival, from 

 what reports I have heard, as the first week in May. 



1909 1910 1911 1912 



Bluebird Mar. i Feb. 22 Feb. 23 Mar. 25 



Robin " 2 Mar. 4 " 25 " 14 



Meadowlark " 5 " 6 Mar. 9 " 19 



Song Sparrow " 6 "5 " 9 " 22 



Purple Crackle " 7 " 6 " 9 " 19 



