lene A UeDeu BrO Nee Be Lb Balt N Ys 
Spring Warbler Migration 
The graph on pages 8 and 9 was prepared by Roberts Mann, super- 
intendent of conservatton of the Forest Preserve District of Cook County, 
from a spring warbler migration study published in the March, 1946, issue 
(No. 57) of the Audubon Bulletin. The following supplementary informa- 
tion is offered to aid interpretation of the records by those who do not have 
a copy of the complete study. 
Approximately two-thirds of the observations shown were made by 
Harry R. Smith in the immediate vicinity of his home in south Evanston. 
The remainder were made within 30 miles of Chicago. Mr. Smith points out 
in explanation of the table from which the graph was prepared that all 
species were treated as migrants passing through the study area, because 
the number of summer resident species actually nesting in the particular 
areas where they were recorded would be negligible. Although the maximum 
number of a few species reached a peak of only one or two days’ duration 
in some years, the consolidated figures for the entire 10 year record show 
that the period of maximum abundance extended from three to 11 days. A 
total of 3,973 birds was recorded, but nine of the rarer species are not in- 
cluded because the number in each case was too small to establish a 
maximum period. 
The chart we are publishing is the third of a related series of three on 
which Mr. Mann has spent a tremendous amount of exacting work. The 
Society is pleased to acknowledge his kindness in permitting its use. 
When we reached the top of the mountain, the towhees set up a racket 
at the fringe of the woods. The loud che-wink set the bob-whites to calling 
over the length of the farm. From every cove and thicket they called. 
Joeline, with her discerning eyes, pointed out a fiash of vivid color in the 
tree at the very bottom of the mountain. “Hit’s no fruit — hit’s a bird,” 
she said. Sure enough, she had spotted a scarlet tanager in the apple tree. 
Then she told me about a conservative mountain woman, who, seeing a 
scarlet tanager in the treetop outside her door, had a sudden impulse to 
“brashness,” and told her husband she “druther” have a dress the color of 
that bird than anything else in life. The husband took his money, which is 
hard come by in mountains, and walked eight miles to the nearest town. 
He bought some scarlet wool, with a little black for trimming, and then 
walked back home with the wish come true, and no small delight within his 
soul. “But she never made it up, and she never wore the dress arter want- 
ing it,” regretfully Joeline concluded. 
When we had filled our pails with berries we slipped and strode down- 
hill to the tent to rest awhile before we began the thankless task of canning 
fruit away from the comforts of a cabinet kitchen and electric stove. While 
we gathered fallen wood for a hot fire, we watched a goldfinch come down 
for a splashing in the shallows of “the branch.”’ His less colorful mate 
waited to be asked to join him. She threw herself into the water with an 
(Continued on page ten) 
