From Opus

Genus: Tringa

[edit] Description

Waders. Range is almost worldwide; breed in North America and Eurasia.

[edit] Taxonomy

Tringa is a genus in the family Scolopacidae.

[edit] Tringa leg coloration

Pereira & Baker (2005) shows evidence to treat Spotted Redshank (erythropus), Greater Yellowlegs (melanoleuca), and Common Greenshank (nebularia) as a superspecies. This study demonstrates Tringa leg coloration as a paraphyletic character, exhibiting the full spectrum of Tringa leg coloration within a superspecies.