Possible pollination by hummingbirds inAnthurium sanguineum Engl. (Araceae)

Species ofAnthurium presumably are pollinated by insects. In the montane rainforests of western Colombia we recorded eight species of hummingbirds paying regular visits to the nectar-producing inflorescences ofAnthurium sanguineum. At peak-floweringA. sanguineum plays an important role in the birds' nutrition. Pollen is deposited on the tip of the birds' bills, indicating that pollination by hummingbirds occurs frequently. As no other flower visitors were recorded, we consider hummingbirds the main pollinators toA. sanguineum.