: late May-late Sep, with mostly adults May/early Jun and /juveniles late Jun-Sep, along salt water including the . Some have remained multiple weeks. Has bred in southern Maine but our birds might have come much further.
Miscellany: Yellow-crowned Night Herons are crab specialists. If Green Crabs continue to spread north and east along the Maine coast, we may be seeing more of these herons.
Last Reviewed: August 22nd, 2026