Nature Happenings

• Hummingbirds and orioles return at the beginning of the month.

• Warbler migration peaks early in May. Nearly 30 species will migrate through the region.

• Sub-adult Purple Martins return to establish new colonies early in the month.

• Yearling Purple Martins (previous year's fledglings) arrive mid- to late-May.

• Rose-breasted Grosbeaks, nighthawks, Wood Thrushes, Veerys and Chimney Swifts return.

• Peak of bird courtship. Listen for the morning chorus.

• Nesting materials are being collected.

• Chickadees and titmice become scarce at feeders as they nest and raise their young.

• Mosquitoes can begin to be a problem late in the month.

• Eta Aquarids meteor shower is early-May.

• International Migratory Bird Day is mid-May.