Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleAge-class determination of ring-necked ducksAuthorsHohman, William L.; Cypher, Brian L.SubjectsRING-necked duck; BIRDSPublicationJournal of Wildlife Management, 1986, Vol 50, Issue 3, p442ISSN0022-541XPublication typeArticleDOI10.2307/3801101