Mexican Long-tongued Bat (Choeronycteris mexicana) feeding at Parry's Century Plant (Agave parryi) flower stalk. Mexican Long-tongued Bats feed on fruits, pollen, nectar and probably insects. The populations that summer in the United States migrate to Mexico and northern Central America in winter, following the blooming cycle of plants such as agaves and cacti. They are a member of a very diverse, mostly tropical family of leaf-nosed bats, the Phyllostomidae. The nose leaf, which looks like a small triangular bump near the tip of the nose, may help direct the ultrasonic echolocation signals the bat sends through its nostrils. Sonoran Desert, Az