Dah Professor: Bird's Eye View
Dah Professor: Ring-billed Gull
Dah Professor: Killer & Killee
Dah Professor: Skimming Gulls
Dah Professor: Ringbilled Gull
Dah Professor: Ring-billed Gulls
Dah Professor: Tight Formation
Dah Professor: Ringbill on Ice
Dah Professor: Ring-billed Gulls
Dah Professor: Ring-billed Gull
Dah Professor: Ring-billed Gull
Dah Professor: Ring-billed Gull
Dah Professor: Sitting On The Dock of the Bay