Long. tot. 5½ unc.; alæ, 3; caudæ, 1⅜; tarsi, ¾; rostri, ⅝; alt. rost. ⅜.
Fœm. Summo corpore fusco singulis plumis alarum caudæque plumis exceptis, pallidè cinerascenti-olivaceo cinctis; gulâ et pectore fuscis; abdomine lateribus et crisso pallidè cinerascenti-fuscis; rostro brunnescente.
Sooty black, with the under tail coverts white; the bill brown, tinged with black, and the feet black.
Female: Upper part of the body fuscous, with the margins of each feather, except those of the wings and tail, pale cinereous olive; the throat and breast fuscous: the abdomen, sides, and under tail-coverts pale cinereous-fuscous; the bill brownish.
Birds. Pl. 36.
Geospiza magnirostris
Birds. Pl. 37.
Geospiza strenua
Birds. Pl. 38.
Geospiza fortis