So far as is recognised, North American crimson-tailed hawks have preyed on 9 species of amphibian, 4 of which are toads. One other bigger species, the rough-legged buzzard, mainly nests significantly north of the breeding assortment of pink-tailed hawks. In 1 occasion, a purple-tailed hawk unsuccessful to get rid of a healthier drake crimson-breasted merganser (Mergus serrator), with this duck approximated to weigh 1,100 g (2.