The Great-billed Hermit is a widespread member of the Phaethornithinae subfamily, and can be found in eastern Colombia, Peru and Ecuador south to Bolivia and east to western Brazil. Populations can also be found in Surinam and French Guiana and in coastal eastern Brazil. This medium sized hermit is very similar in appearance to the Long-tailed Hermit (P. supreciliosus), but can be distinguished from this species by its faint gular stripe. The Great-billed Hermit inhabits the understory of terra firme, pre-montane, humid tropical, and transitional forests, as well as bamboo thickets and shrubbery. Like other hermit speices, the diet of the Great-billed hermit consists of nectar and small arthropods. These birds are not globally threatened, but the race margarettae is confined to forest remnants within its range in eastern Brazil.