Sora (Porzana carolina)
Whinny: A loud, descending series of 10-30 notes, often heard during spring migration and on the breeding grounds. Mated pairs often give this call as a duet, with the male calling first and the female adding her higher pitched and shorter call at the end (Kaufmann 1983).
Sora Whinny, April 22, 2012, Horicon Marsh, Dodge Co, Wisconsin. Male/female duet can be heard on this recording.
Ker-wee Call: A loud, plaintive whistle, heard only early in the breeding season. It may function as a mate attraction call (Melvin and Gibbs 1996).
Sora Ker-wee Call, April 22, 2012, Horicon Marsh, Dodge Co, Wisconsin.
Kaufmann, G. W. 1983. Displays and vocalizations of the Sora and the Virginia Rail. Wilson Bull. 95:42-59.
Melvin, Scott M. and James P. Gibbs. 1996. Sora (Porzana carolina), The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology; Retrieved from the Birds of North America Online: http://bna.birds.cornell.edu/bna/species/250 doi:10.2173/bna.250