Arctic Terns are slender terns with long, angular wings and pointed wingtips. They have a small round head with a steep forehead and extremely short legs. Breeding adults have a deeply forked tail.
Larger than a Least Tern, smaller than a Caspian Tern.between robin and crow
- Both Sexes
- Length: 11.0-15.3 in (28-39 cm)
- Weight: 3.2-4.2 oz (90-120 g)
- Wingspan: 25.6-29.5 in (65-75 cm)