MIGRATION OF OUR BIRDS 265 
Migration of Our Birds in the Spring of 1910. 
: BROTHER ALPHONSUS, C. S. C. 
The following birds arrived from five to ten days earlier 
than last spring: Bluebird, Killdeer, Phoebe, Vesper Sparrow, 
Golden Crowned Kinglet, Hermit Thrush, Brown Thrasher, 
Scarlet Tanager, Least Fly Catcher. The very mild weather 
from the 18th of March until the 16th of April, with a temper- 
ature of 59° or higher, for two-thirds of the time, accounts 
. for the marked difference in the dates of arrival between this 
year and last of the above-named species. 
The Flicker, Field and Chipping Sparrows, Sapsucker, 
Towhee, Hell Diver, Red-headed Woodpecker, Cardinal, Ruby- 
crowned Kinglet, Alder and Crested Flycatchers also arrived 
from twelve to thirty days earlier. The warm weather was, 
if not directly, at least indirectly the cause of the very early 
arrival of these birds. 
A few species arrived considerably later than last spring. 
Among these were the Indigo Bird, Barn Swallow, Myrtle and 
Yellow Palm Warblers. The cold weather following for a 
month after April 16th was, doubtless, the reason why these 
species arrived so much later 
Ten species were not seen this spring. They were the 
Purple Finch, White-crowned Sparrow, Wilson’s Thrush, 
Ovenbird, Blackburnian, Canadian, Tennesse, Hooded, Ken- 
tucky Warblers. 
Feb. 22 Bluebird March 16 Cowbird 
March 4 Killdeer * . 19 Towhee 
e 4 Robin " 20 Prairie Horned 
és 4 Loggerhead Lark 
Shrike * 24 Flicker 
y 5 Red-winged * 25 Field Sparrow 
Blackbird " . 26. Vesper Sparrow 
se 5 Song Sparrow -“ 26 Yellow-bellied 
sE 6 Purple Grackle Sapsucker 
un 6 Meadowlark * 27 Chicken Hawk 
be 6 Canada Goose * — 28 Tree Sparrow 
as 6 Herring Gull departed 
