Sandwich tern
Birds
The Sandwich tern is a tern in the family Laridae. It is very closely related to the lesser crested tern, Chinese crested tern, Cabot's tern, and elegant tern and has been known to interbreed with the lesser crested. Wikipedia
Scientific name: Thalasseus sandvicensis
Conservation status: Least Concern (Population stable)
Mass: 4.6 – 11 oz
Family: Laridae
Phylum: Chordata
Source: Encyclopedia of Life