sicklebill

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. Any of several birds having long sharply curved bills, as Falculea palliata, a passerine bird of Madagascar, and Hemignathus procerus, a Hawaiian honeycreeper.

Century Dictionary and Cyclopedia

1. n. A name of various birds whose bill is sickle-shaped or falciform; a saberbill. Those of the genera Drepanis, Drepanornis, and some allied forms.
2. n. The California thrasher, Harporhynchus redivivus.

Wiktionary

1. n. Any of several birds with a sickle-shaped bill

GNU Webster's 1913

1. n. Any one of three species of humming birds of the genus Eutoxeres, native of Central and South America. They have a long and strongly curved bill. Called also the sickle-billed hummer.
2. n. A curlew.
3. n. A bird of the genus Epimachus and allied genera.