I don't normally waste my time shooting Pelicans, but I've seen them do this a few times, and yesterday I caught it with a camera. My guess is that they do this to keep the ol' "fish bucket" stretched out and ready for used. Very bizarre to see, though.
No need to comment on these, this is just a behavioral series:
LOL - Looks like he swallowed his head!!!
Contiued on next post....