I could have sworn that when looking in on my female wood duck, when she was quacking, her bottom bill looked like it was split. It had a definite ^ shape, like it had the start of a split right down the middle. It could only be seen for the split second she had her mouth open to quack. She is so skittish I couldn't get close, and the darn thing hasn't quacked again while I've been watching, for me to get a second look. Is this normal? There's no way i could get a picture since my camera takes such a long time to snap a picture after I push the button.