Pelicans are very gregarious. With this photo I found it very interesting that there was such a difference in length of bill and pouch. I would assume this is due to difference in age.
American White Pelican (Pelecanus erythrorhynchos)
Pelecanus erythrorhynchosAmerican White Pelicanwhite rock lakedallas texassunset bayaquatic birdaquaticwater fowl