The Yellow Cardinal is a graceful sprightly bird, with a strong melodious voice, and is one of our favourite cage-birds. It visits Buenos Ayres in small flocks in spring, but is a rare bird with us. There is little variety in its song, which is composed of four or five mellow notes of great power, and in tone somewhat like the whistle of the Blackbird of Europe. 73. DIUCA GRISEA (Less.). (DIUCA FINCH.) +Diuca vera+, _Burm. La-Plata Reise_, ii. p. 483 (Mendoza). +Diuca grisea+, _Scl. et Salv. Nomencl._ p. 31. _Description._--Above grey, sides of head darker; wings and tail blackish, edged with grey; lateral rectrices tipped with white; below grey, whole chin and throat and middle of the belly white; lower flanks and crissum stained with rufous; bill plumbeous; feet dark hazel: whole length 6·3 inches, wing 3·3, tail 2·6. _Female_ similar, but tinged with brownish, and colours more obscure. _Hab._ Chili and Western Argentina. This well-known Chilian species is said by Burmeister to be not unfrequent near Mendoza and along the range of the Cordilleras. 74. DIUCA MINOR, Bp. (LESSER DIUCA FINCH.) +Diuca minor+, _Burm. La-Plata Reise_, ii. p. 483 (San Louis, Cordova); _Scl. et Salv. Nomencl._ p. 31; _Hudson, P. Z. S._ 1872, p. 537 (Rio Negro); _Durnford, Ibis_, 1878, p. 393 (Tombo Point, Pat.); _Döring, Exp. al Rio Negro, Zool._ p. 39 (R. Colorado, R. Negro); _Barrows, Bull. Nutt. Orn. Cl._ viii. p. 131 (Concepcion, Entrerios). _Description._--Grey; head, neck, and back faintly washed with brown; wings blackish, the feathers edged with brownish grey; tail-feathers black, tipped with white on the inner webs; beneath, from the bill to the chest, white; upper part of breast and sides grey; rest of the under surface white; a bright chestnut spot on the flanks: whole length 6·5 inches, wing 3·2, tail 2·6. _Female_ similar, but less bright than male. _Hab._ Argentina and Patagonia.