Sealy, Spencer G. “Dump’ Nests of the Redhead Duck: Anecdotal Comparisons of Facultative and Obligate Brood Parasitism at Delta Marsh, Manitoba”. Blue Jay 70, no. 4 (December 25, 2012): 245–251. Accessed June 27, 2022. https://bluejayjournal.ca/index.php/bluejay/article/view/337.