The pink-backed pelican is not a "Pink-backed Pelican" -- the "Roseate" is a pinkish-coloured Great White (Eastern White) Pelican (not a "Pink-backed" species).
How do you tell if a pelican is male or female?
It's the shellfish diet that makes me pink -- like flamingoes (or was it a rose I ate?)
"You should eat pigeon, keeps your plumage white"
"Pull the other one"