J | M BIRDING:
Lesser Black-Backed Gull - Cape May Point State Park
J | M BIRDING:
Iceland Gull - Cape May County (NJ)
J | M BIRDING:
Black-Headed Gull - Philadelphia County (PA)
J | M BIRDING:
Ring-Billed Gull - Northampton County (PA)
J | M BIRDING:
Ross's Gull - Franklin County (NJ)
J | M BIRDING:
Iceland Gull - Northampton County (PA)
J | M BIRDING:
Great Black-Backed Gull - Northampton County (PA)
J | M BIRDING:
Lesser Black-Backed Gull - Northampton County (PA)