[274]

Duets are said to be sung; cf. Hudson Argentine Ornithology, i. 1888, p. 168.

[275]

P.Z.S. 1882, p. 609.

[276]

Op. cit. 1873, p. 268.

[277]

Cat. Birds Brit. Mus. xv. 1890, p. 177.

[278]

Some Oscines have as many as seven pairs, but Sphenoeacus has only three.