• Rose-breasted Grosbeaks, nighthawks, Wood Thrushes, Veerys and Chimney Swifts return. • The first fireflies of the year can be seen. • Peak of warbler migration happens early in month. • Mimic thrushes such as mockingbirds, catbirds and Brown Thrashers return. • Sub-adult Purple Martins return to establish new colonies early in month. • Peak of bird courtship. Listen for the morning chorus. • Nesting materials are being collected. • Orioles return and begin nesting. Be sure to have their feeders, nectar, fruit and jelly out early. • Indigo Buntings return and are very vocal. • Chickadees and titmice become scarce at feeders as they nest and raise their young. • Mosquitoes can begin to be a problem. • Mayapples, Chicory and Primrose are in bloom. • Poison Ivy blooms. Watch out! • Eta Aquarids meteor shower is early-May. • International Migratory Bird Day is mid-May.
