(RED-FRONTED THORN-BIRD.)
+Phacellodomus frontalis+, _Burm. La-Plata Reise_, ii. p. 467
(Tucuman); _Scl. et Salv. Nomencl._ p. 65; _Salvin, Ibis_, 1880,
p. 359 (Salta); _White, P. Z. S._ 1882, p. 612 (Buenos Ayres).
+Phacellodomus sincipitalis+, _White, P. Z. S._ 1883, p. 433.
_Description._--Above nearly uniform olive-brown, crown blackish
brown, superciliaries white; beneath dirty brownish white; under
wing-coverts pale cinnamon; bill and feet horn-colour: whole length
6·8 inches, wing 2·6, tail 2·6. _Female_ similar.
_Hab._ S. America, from Venezuela to Argentina.
The Red-fronted Thorn-bird, which is found in the Northern provinces of
Argentina, and only occurs as a straggler near Buenos Ayres, resorts to
the thickets, and in its habits is said to resemble the _Synallaxes_ of
the group to which _S. spixi_ and _S. albescens_ belong. It builds a
large nest of sticks, and White says that it makes a peculiar chattering
sound that has the effect of exciting other small birds, and causes them
to crowd about it.