Black-Billed Gull Details Species in this photo: Black-Billed Gull Location: Arrowhead Marsh, East Bay Date Added: February 25, 2026 More of this species Species in this photo: Black-Billed Gull Location: Arrowhead Marsh, East Bay Date Added: February 25, 2026 Species in this photo: Black-Billed Gull Location: East Bay, Lake Merritt Date Added: December 28, 2025 Locations where this species was seen Arrowhead Marsh Lake Merritt
