Commensal foraging associations are defined as those in which one species aids the foraging of another while incurring no significant costs and receiving no benefits (Wiens 1989). A common commensal association comprises a “beater” species unintentionally flushing and thus making prey available for an “attendant” species (Wiens 1989). Commensal foraging is relatively common among birds, with most such associations between two or more species of birds (see Baker 1980, Robbins 1981, Hino 1998). Foraging associations between birds and mammals are somewhat less common but have been observed with Nine-banded Armadillos (Dasypus novemcinctus; Komar and Hanks 2002), West Indian Manatees (Trichechus; Scott and Powell 1982), Maned Wolves (Chrysocyon brachyurus; Silveira et al. 1997), human beings (Skutch 1969), other primates (Stott 1947, Boinski and Scott 1988, Ruggiero and Eves 1998), and, most frequently, ungulates (Heatwole 1965, Dinsmore 1973, Grubb 1976, Dean and MacDonald 1981, Burger and Gochfeld 1982, Källander 1993, Ruggiero and Eves 1998).