When we go birding in the lagoons and estuaries of Baja Sur; sometimes we get extra lucky and see some Terns. The Tern on the left is a Caspian Tern and on the right we have a Royal Tern.
The Caspian Tern has a thick, coral red bill and is a stockier built bird than
the Royal Tern (pictured below).
Terns can be distinguished from gulls by their long, pointed bills, pointed wings and feeding behavior. Most Terns plunge-dive into water to catch prey.