The Pale-vented Pigeon (Columba cayennensis) calls in the distance at Manuel Antonio (Costa Rica), 6/12/98. Pale-venteds are sometimes hard to tell from Short-billeds - their size is similar and they both have dark bills, and when wet (which is often) they are both predominantly dark pigeons. Their calls are quite different, though. The Pale-billed says "Who are you?" and the Short-billed asks "Who cooks for you?" (Silly mnemonic device: The Short-billed is a "Short order cook")
Douglas Von Gausig (recordist; copyright holder), Naturesongs.com
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