Additional
Information: The Harlequin Duck is the only species in this genus.
Histrionicus Sites:
Histrionicus histrionicus (Harlequin Duck) Histrionicus histrionicus (Harlequin Duck): Describes the food habits, behavior, range, and conservation status of this species. (Histrionicus) http://animaldiversity.ummz.umich.edu/site/accounts/information/Histrionicus_histrionicus.html
Harlequin Duck (Histrionicus histrionicus linnaeus) Harlequin Duck (Histrionicus histrionicus linnaeus): Illustration, description, range, and status in Nova Scotia. (Histrionicus) http://museum.gov.ns.ca/mnh/nature/nsbirds/bns0070.htm
Harlequin Duck Harlequin Duck: Appearance, range, migration cycle, feeding habits, and conservation status of Histrionicus histrionicus. (Histrionicus) http://www.hww.ca/hww2.asp?pid=1&cid=7&id=47
Harlequin Duck (Histrionicus histrionicus) Harlequin Duck (Histrionicus histrionicus): Winter range map, photos, identification tips, and taxonomy chart. (Histrionicus) http://www.mbr-pwrc.usgs.gov/id/framlst/i1550id.html