it began to seem very plausible to us that they were, in fact, poking about in the spaces between rocks trying to get a crab to seize the lure, at which point they could drag it into the open. Turns out, Herring Gulls do, in fact, use tools in precisely this way
I knew that crows were tool-users, but not gulls. That's wonderful.
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I knew that crows were tool-users, but not gulls. That's wonderful.