- Watch for the endangered whooping cranes to begin migrating towards Chassahowitzka National Wildlife Refuge, in Florida.
- Coho and Chinook salmon are on the move, see them at Kewaunee at the C.D. Besadny Fish and Wildlife Area.
- The first frost kills mosquitoes and katydids, grasshoppers and crickets stop calling.
- Muskrats and beaver are busy building lodges, gatering food, and preparing for winter.
- Red-winged blackbirds form large flocks
- Fall leaves on decidious trees turn brilliant colors before they are plucked by the wind and float to the ground. Tamarack needles also turn gold before dropping off.
- Black walnuts fall from the trees and look like green tennis balls in the grass. Squirrels fill their mouths with them to store for a winter treat.
- Amphibians and reptiles hibernate for the winter.
- Cattails explode with seeds in the fall. They float away like parachutes in the wind.
- Snowshoe hares are turning from brown to white, getting ready for snowfall.
- Ducks, Canada geese, woodcock, and snipe are on the move, migrating south. Watch for winter visitors from Canada like the dark-eyed junco and white-throated sparrow.
- Milkweed pods open for their seeds to parachute away in the wind.
- The Big Dipper is at the lowest point in the sky.