River duck

(Zool.) any species of duck belonging to Anas, Spatula, and allied genera, in which the hind toe is destitute of a membranous lobe, as in the mallard and pintail; - opposed to sea duck.
- Bartlett.

See also: River

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Many folks believe that the toiler, referred to as the "Little River Duck Dog" in its native Nova Scotia, would stand on the shore and wave his tail in the air like a blind-bound hunter flagging geese, which is simply not true.
The guides are seasoned sportsmen who know White River duck hunting and a good joke or two.
We were pleased to support the Great Truckee River Duck Race which was held on August 24, 2008 at Wingfield Park in Reno.
The bloodied remains of a river duck were found at Fazeley, near Tamworth, surrounded by a number of empty booze cans and half-full bottles.
The Fraternal rush started when a friend swayed me to join him and a partner on a river duck hunt.
This led eventually to the breed known first as the "Little River Duck Dog" and more recently as the "Nova Scotia Duck Tolling Retriever," a.k.a."Toller."
Originally known as the Little River duck dog, and renamed as the Nova Scotia duck tolling retriever in the early 1920s, this breed is documented back to the early 19th century.
In the 1940s, Frank Belrose, the Illinois Natural History Survey's waterfowl biologist, began working with the effects of ingested lead shot on Illinois River ducks and its bearing on mortality and reproduction.
Saturday -- Nashua River Ducks Unlimited Conservation Fundraiser, opens 5:30 p.m.