There are eight different species of curlew: the Whimbrel, Bristle-thighed, Eurasian, Eastern, Little, and Long-billed. The Slender-billed Curlew is critically endangered.
The Eskimo Curlew may be extinct. The last confirmed sighting was in 1962. A book and animated movie, Last of the Curlews, tell the story of this bird that may have been seen by Columbus when he reached North America.