[mod.L. (Humboldt, 1814), f. Gr. στεατ-, στέαρ fat + ὄρνις bird.] A bird of the species Steatornis caripensis, the type and only representative of the family Steatornithidæ; the GUACHARO or oil-bird of South America.
1818. Helen M. Williams, trans. Humboldt’s Trav., III. III. vii. 125. The guacharo is of the size of our fowls…. I have noted it under the name of steatornis.
1895. Pop. Sci. Monthly, April, 776. Steatornis breeds by the hundreds in the vast gloomy caves.
