The Peregrine Falcon (Falco peregrinus) is well known as a predator of aerial prey. White et al. (2002) estimated that the diversity of birds it captures exceeds 2000 species worldwide. Its primary mammalian prey are also aerialists: bats. In North America, recorded prey encompass at least 429 species of birds and 23 of mammals, including 10 of bats (White et al. 2002). Fish would not appear to be available as food for aerial hunting Peregrines. Nevertheless, Cade (1960) reported an incident of capture of live fih: his visit to an Alaska eyrie had agitated the adults, which circled above him, calling. The male then stooped and captured an arctic grayling (Thymallus arcticus) from a school leaping from the nearby river and transferred it to his mate, who departed the immediate area, apparently because of the human presence. In California, Peregrines have been seen pirating fih from Ospreys (Pandion haliaetus) (B. Walton in White et al. 2002). Our Figure 1 represents what we believe is the fist photo-documentation of a Peregrine Falcon feeding on a fih.