The Great Chicago Squirrel Census

Scientists need to know!

Scientists attempting to count the number of squirrels per zip code in the Chicago area are asking people to record sightings of the rodents on a Web site. 
...
Urban ecologist Steve Sullivan leads the effort and says the Midwest is a "squirrel hot spot."

If I log in every sighting,
I'll spend my whole day writing:

"in a tree" or "on the grass".

We have so many, that, alas,
I think I'll have to take a pass.