Lowther, Peter E., Hector D. Douglas III, and Cheri L. Gratto-Trevor. 2001. “Willet (Tringa semipalmata).” The Birds of North America, edited by Paul G. Rodewald. Ithaca: Cornell Lab of Ornithology. Retrieved from the Birds of North America: https://birdsna.org/Species-Account/bna/species/willet1 doi: 10.2173/bna.579