Beaver lodge in fall
  • Autumnal Equinox arrives (hours of the day and night are equal) September 22, officially the first day of fall.
  • Across Wisconsin, deciduous leaves change color and begin to fall. Tamarack tree needles turn yellow and will eventually fall.
  • Katydids, grasshoppers, crickets and cicadas stop "whining" in the evening air.
  • Birds begin migration. Watch and listen for Canada geese.
  • Whitetail bucks rub off the "velvet" from their antlers to prepare for the rut.
  • Mosquitos begin to disappear, hurrah!
  • Beavers reinsulate their lodges with mud& branches and stash tasty birch and aspen branches for a winter's meal.
  • Thirteen-lined ground squirrels and gray squirrels fatten up for a long winter's nap by eating nuts from trees.
  • Hawks gather in migrating groups along northern lake shores.
  • Later this month chinook salmon start spawning. It's a good time for fish watching.
  • Tiger salamanders migrate to wintering sites like logs, the foundation of buildings, and gopher mounds.