Field Guide to September 2023
It can happen almost anywhere. On a cool, foggy morning, when fall warblers drop from their nocturnal migratory flights into your backyard. Or on a hilltop when the Broad-winged Hawks circling above and Monarchs gliding southward convince you that summer is indeed coming to a close. Here is your field guide to some life on the move in September.
Squirrel Numbers Mount, by Land and Water
The Northeastern U.S. is experiencing a mass movement of squirrels, unlike any most of us have ever witnessed. Dispersing animals are choosing some unusual travel modes, including swimming, and many have ended up as hapless victims of collisions with vehicles. Despite its grisly consequences along our roadways, this food-driven phenomenon is one more example of the ever-fascinating, dynamic ecological links that characterize our natural world.