Department of Energy Argonne National Laboratory Office of Science NEWTON's Homepage NEWTON's Homepage
NEWTON, Ask A Scientist!
NEWTON Home Page NEWTON Teachers Visit Our Archives Ask A Question How To Ask A Question Question of the Week Our Expert Scientists Volunteer at NEWTON! Frequently Asked Questions Referencing NEWTON About NEWTON About Ask A Scientist Education At Argonne Unusually Illinois Squirrels
Name: Steve
Location: N/A
Country: N/A
Date: N/A

The Fieldbook of Illinois Mammals by Donald Hoffmeister and Carl Mohr (Dover 1972) does not list any squirrels that are black with white tuffs or remaining red squirrels in Illinois. One of my former AP Biology students at Augustana College has reported that individuals with the above characteristics are common in and around Rock Island. What species are these most likely? The Red squirrels may be Fox, but the Black?

Updated and much expanded Mammals of Illinois, by Hoffmeister, should be available at a decent library, and might help. Eastern grey squirrels often come in black color phase, I've never seen any with "white tufts," whatever exactly you mean by that. A true red squirrel is quite small, about the size of a chipmunk, fox squirrels are reddish but even larger than greys, and quite common.

J. Elliott

Click here to return to the Biology Archives

NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by Argonne National Laboratory's Educational Programs, Andrew Skipor, Ph.D., Head of Educational Programs.

For assistance with NEWTON contact a System Operator (, or at Argonne's Educational Programs

Educational Programs
Building 360
9700 S. Cass Ave.
Argonne, Illinois
60439-4845, USA
Update: June 2012
Weclome To Newton

Argonne National Laboratory