A slender, long-tailed, long-winged seabird with a long, pointed bill and short legs. When perched, the long tail streamers extend past the end of the wings.
Relative Size
Larger than a Black Tern, smaller than a Bonaparte’s Gull.
![Relative Size](/guide/images/size/scale.png)
![between robin and crow](/guide/images/size/btwn-robin-crow.png)
Measurements- Both Sexes
- Length: 13.0-14.2 in (33-36 cm)
- Weight: 4.6-6.7 oz (130-190 g)
- Wingspan: 30.7-31.5 in (78-80 cm)
- Length: 13.0-14.2 in (33-36 cm)
- Weight: 4.6-6.7 oz (130-190 g)
- Wingspan: 30.7-31.5 in (78-80 cm)