a1. Tail barred with blackish brown and white. baueri (p. 120) a2. Tail with a white base and broad, black, terminal band; upper tail-coverts pure white. limosa (p. 121)
a1. Tail barred with blackish brown and white. baueri (p. 120)
a2. Tail with a white base and broad, black, terminal band; upper tail-coverts pure white. limosa (p. 121)