Gull-billed Terns are medium-sized terns with long, narrow, pointed wings. Compared to other terns, they have a thick bill, and a fairly short tail with a shallow fork.
Larger than a Common Tern, smaller than a Royal Tern.between robin and crow
- Both Sexes
- Length: 13.0-15.0 in (33-38 cm)
- Weight: 5.3-7.2 oz (150-205 g)
- Wingspan: 33.5-45.3 in (85-115 cm)