The opening of SUBFAMILY PASSERELLINÆ
CHAR. Toes and claws very stout; the lateral claws reaching beyond the middle of the middle one; all very slightly curved.
[Line drawing: Passerella iliaca.
846]Bill conical, the outlines straight; both mandibles equal; wings long, longer than the even tail or slightly rounded, reaching nearly to the middle of its exposed portion. Hind claw longer than its digit; the toe nearly as long as the middle toe; tarsus longer than the middle toe. Brown above, either uniformly so or faintly streaked; triangular spots below.
This section embraces a single North American genus, chiefly characterized by the remarkable elongation of the lateral claws, as well as by the peculiar shape and large size of all the claws; the lateral, especially, are so much lengthened as to extend nearly as far as the middle. The only approach to this, as far as I recollect, among United States Conirostres, is in Pipilo megalonyx, and Xanthocephalus icterocephalus.