a cup of plant and other fibers and cobweb attached to the underside tip of a long drooping leaf. The female alone incubates the two white eggs, though males have been observed remaining in the nest's vicinity. Vocalization The band-tailed barbthroat's song is "a fast high-pitched phrase of some 5–10 notes repeated with intervals of several seconds...e.g. 'tzi-tzi-tsee-ee-tsi-tzi-tzi'." In Costa Rica the Pacific slope population has a more complex song than that of the Caribbean slope birds; it includes trills. Status The IUCN has assessed the band-tailed barbthroat as being of Least Concern, although its population has not been enumerated and its trend is not known. It appears to be generally common and occurs is several protected areas. References Further reading Hilty, Birds of Venezuela, Stiles and Skutch, A guide to the birds of Costa Rica band-tailed barbthroat Hummingbird species of Central America Birds of Honduras Birds of Nicaragua Birds of Costa Rica Birds of Panama Hummingbird species of South America Birds of Colombia Birds of Ecuador band-tailed barbthroat band-tailed barbthroat