On June 19 near the Paul Olson Wildlife Area of Wood County, I heard what I can't imagine being anything other than a Least Bittern. And while the species itself is not a rarity, I was unable to find anything online that matched the vocalization I heard. I couldn't use my tape recorder because of wind and traffic, but I could hear the bird clearly: a low-pitched "cow, cow, cow, cow," with each note descending and at an even tempo. There was about a half second lag between each note, making it slower than the typical call of a Least Bittern. The sound came from the middle of a sedge marsh, which would eliminate Black-billed Cuckoo. Has anyone else heard Least Bitterns make this kind of call, or is there some other species I'm completely missing? Gotta love when birds make you scratch your head... Alyssa DeRubeis Stevens Point, Portage Co. #################### You received this email because you are subscribed to the Wisconsin Birding Network (Wisbirdn). To UNSUBSCRIBE or SUBSCRIBE, use the Wisbirdn web interface at: //www.freelists.org/list/wisbirdn To set DIGEST or VACATION modes, use the Wisbirdn web interface at: //www.freelists.org/list/wisbirdn Visit Wisbirdn ARCHIVES at: //www.freelists.org/archives/wisbirdn