(WHITE-HEADED TYRANT.)
Arundinicola leucocephala, d’Orb. Voy., Ois. p. 334 (Corrientes).
Description.—Black; whole head and neck and a patch on the flanks white; bill horn-colour, base of lower mandible white; feet black: whole length 5·0 inches, wing 2·5, tail 1·8. Female above cinereous; front and sides of head whitish; tail black; beneath white, flanks and under wing-coverts cinerascent.
Hab. Colombia and southwards to Argentina.
This species, which is of wide distribution, was met with in Corrientes by d’Orbigny.
[122.] ALECTRURUS TRICOLOR, Vieill.
(COCK-TAILED TYRANT.)
[Alectrurus] tricolor, Scl. et Salv. Nomencl. p. 43.
Description.—Above black, rump greyish; sides of the head, scapularies, lesser wing-coverts, and outer margins of secondaries white; tail black, outer rectrix on each side produced, expanded, fan-shaped; below white, patch on each side of the breast (forming an incomplete collar) black; bill horn-colour; feet black: whole length 7·2 inches, wing 2·8; tail, outer rectr. 2·5, middle rectr. 1·5. Female: above brown, rump and lesser wing-coverts pale; beneath dirty white, sides of breast brown.
Hab. S. Brazil, Paraguay, Uruguay, and Argentine Republic.