HERMIT THRUSH 
WINTER RECORDS | 
DEC.1— JAN. 31 
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Fig. 19.—Winter and early spring recoveries of hermit thrushes 
banded in northeastern Illinois during fall migration. 
Grasshoppers (7-8 percent), Hemiptera (7-8 percent), and vere | 
spiders (4 percent) made up most of the remainder. wae. ! 
Forbes found no fruit in the diet, but he examined only ek ; ee ao 
two fall specimens. We have found hermit thrushes to be ae ee a | 
very found of pokeberries, and have also seen them feeding . | 
on wild grapes in October. Nothing has been recorded on Fig. 20.—Winter records for the hermit thrush in Illinois. T) 
the winter food. regions of the state discussed in the text are shown by heavy lines. | 
| 
| 
NORTH —— 
CENTRAL —-— — 
SOUTH —— 
Fig. 21.—Annual variation in 
winter hermit thrush populations, 
based on Audubon Christmas counts 
in three regions of the state. Graph 
lines show the number of hermit 
thrushes seen per 100 party hours. 
(For information about the Audubon 
Christmas counts, see Cruickshank 
1970.) 
BIRDS per 100 PARTY HOURS 
w 
1940 1950 1960 
22 
