Black tip to beak. Dudley CarIson writes: "Is that really a Band-tailed Pigeon, or could it be a robin? The bicolored beak is right for BTP, but the eye-ring isn't, and there's no sign that I can see of the white collar. I'm no expert, and it's hard to judge size from this perspective. Check it out with your bird experts." I looked again, and agree with her. Thanks, Dudley!