CBS2 (Chicago, Illinois) 26 August 06 Biologists FInd Endangered Rattlesnakes - Such Small Numbers Signal Wetland Problems
Chicago (AP): A survey of snake populations in northeastern Illinois turned up the last few wild rattlesnakes in the region.
Biologists found 10 eastern massasauga rattlers in a prairie in the watershed of the Des Plaines River. They won't say exactly where they found them, in an effort to protect them.
Five of the snakes were young ones born last year, but there were no adult males.
The surveyors measured the rattlesnakes, photographed them and implanting them with microchips.
Biologists say the snake -- which is on the state's endangered species list -- is an important part of a balanced food chain. The snakes eat mice and voles, and are eaten by herons, hawks and other snakes.
Their small numbers signal problems in the wetlands that provide habitat for other animals.
Biologists FInd Endangered Rattlesnakes