Diet and Foraging

Puerto Rican Screeh-Owl is primarily insectivorous, but also regularly consumes small vertebrates. Wetmore (1916) examined the contents of five stomachs, which contained primarily arthropods, including roaches, crickets, grasshoppers, a mantis, a mole cricket, beetles, weevils, moths and caterpillars, and scorpions. Four of the stomachs also contained lizards, and two of the stomachs contained birds (an American Redstart Setophaga ruticilla and a Black-faced Grassquit Tiaris bicolor).