[89]

A. D. Bartlett, P.Z.S. 1869, p. 146.

[90]

Sclater and Hudson, Argentine Ornithology, ii. 1889, pp. 103, 104.

[91]

Cf. Sharpe, Cat. Birds Brit. Mus. xvii. 1898-9, pp. 56-59.

[92]

Ridgway, Manual N. Amer. Birds, 1887, p. 128. A. würdemanni of Florida is a close ally.

[93]

Petherick, P.Z.S. 1860, pp. 195-198, and Ibis, 1859, p. 471.