A regional field guide in four parts
What to look for in the Mid-Atlantic
Written from a yard in southwestern Pennsylvania, useful anywhere in Pennsylvania, Maryland, Virginia, Delaware, New Jersey, and West Virginia.

Most nature guides tell you what exists. This one tells you what is happening right now, in this region, close enough to reach on a weekday. Each season lists the things worth walking outside for, roughly when they appear, and one or two short walks that work with young children and no equipment.

March · April · May
Spring
Ephemerals, first frogs, and the two weeks the woods are lit from the floor up.
Read the spring guide
June · July · August
Summer
Fireflies, cicadas, and the small water everyone steps over.
Read the summer guide
September · October · November
Fall
Seed dispersal, hawk streams, and the leaf that tells you which tree it left.
Read the fall guide
December · January · February
Winter
Bare-branch shapes, tracks in mud, and the nests that were hidden all year.
Read the winter guide
Walk with us
Upcoming events
Nature walks and co-op afternoons around the region — dates, meeting places, and who each one suits.
See upcoming eventsTake it outside
Pair a season with a page
Every guide points back outdoors. If you want something to carry, the printables and seasonal activities are built for exactly these walks.