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A western gull holds a mussel in its beak on an agate beach at Yaquina Head on the Oregon coast

Birds have evolved different strategies to solve the same problem. Oystercatchers have a long thin bill dedicated to cracking open shellfish and extracting the flesh inside. Gulls have a varied diet (to put it mildly) and so have more general purpose bills. That didn’t deter this gull, however, from trying for a mussel meal. It would hold the shell in its mouth, fly up high, then drop the mussel onto the agate beach to get the shell to crack open. Mussels must have a pretty tough shell as the gull never managed to crack it despite several attempts.