American dipper
noun
: dipper sense 2a(1)
We spotted American dippers, birds that walk under water in search of aquatic insects and confound scientists with their ability to withstand icy mountain stream temperatures. 
Kristi Streiffert, Spokesman Review (Spokane, Washington), 3 Sept. 2000
Kristi Streiffert, Spokesman Review (Spokane, Washington), 3 Sept. 2000
Word History
First Known Use
1828, in the meaning defined above