The Illinois Audubon Society released the numbers on Tuesday, saying
there were 2,152 eagles counted. That's up from the 2,108 counted in
January 2011. Surveyors use 44 routes in Illinois to count bald
eagles. Of those, 29 are along the Mississippi River and nine on the
Illinois River. Others are on the Ohio River, Wabash River, Crab
Orchard Lake, Horseshoe Lake Conservation Area and Carlyle Lake.
The largest populations, about 76 percent, were found along the
Mississippi River. The second-most were counted on the Illinois
River, at 21 percent. Of the total, more than 60 percent were adults
and about 40 percent were immature or un-aged.
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