Dah Professor: Great Black-backed Gull
Dah Professor: Oystercatcher and Gull
Dah Professor: Great Black-backed Gull
Dah Professor: Great Black-backed Gull
Dah Professor: Great Black-backed Gull
Dah Professor: Great Black-backed Gull
Dah Professor: Herring Gull?
Dah Professor: Great Black-backed Gulls