Tantalus Mexicanus, Ord. Journ. Acad. Phil.

Tantalus chalcopterus? Temm.

Ibis Falcinellus, Bonap. Am. Orn. iii.

My specimen was obtained at the Rio Negro: it is very numerous in large flocks on the vast swampy plains between Bahia Blanca and Buenos Ayres. Its flight when soaring is singularly graceful; the whole flock moving in precise concert.

1. Numenius hudsonicus. Lath.

Numenius Hudsonicus, Lath. Ind. Orn. ii. 712.

This curlew is very abundant on the tidal mud-banks of Chiloe. When the flock rises, each bird utters a shrill note.

2. Numenius brevirostris. Licht.

Numenius brevirostris, Licht. Cat. 75, sp. 774 a.

Buenos Ayres.