[DOC] [TLE] Canvasback - Wikipedia [PAR] The canvasback (Aythya valisineria) is a species of diving duck, the largest found 
in North America. ... The species name valisineria comes from the wild celery 
Vallisneria americana, whose winter buds and rhizomes are the ... Protecting key 
feeding and breeding grounds is key for conserving many types of migratory 
birds. [DOC] [TLE] Canvasback | Audubon Field Guide [PAR] Its specific name of valisineria refers to the technical name of wild celery, an 
aquatic plant that is among its ... Canvasback ... Lives of North American Birds... [DOC] [TLE] Canvasbacks, Canvasback Pictures, Canvasback Facts -- National ... [PAR] Thousands of birds migrate together each year to traditional wintering sites like 
the ... The majority of North American canvasbacks breed in the Prairie Pothole ... 
But the shoals' lush beds of wild celery have declined with compromised water... [DOC] [TLE] Canvasback, Life History, All About Birds - Cornell Lab of Ornithology [PAR] Learn how to identify Canvasback, its life history, cool facts, sounds and calls, 
and ... of the Canvasback, Aythya valisineria, comes from Vallisneria americana, 
or wild ... Canvasback is not on the 2016 State of North America's Birds' Watch 
List. [DOC] [TLE] canvasback | bird | Britannica.com [PAR] Canvasbacks breed in northwestern North America and winter along the coasts 
... Canvasbacks prefer the roots of wild celery (eelgrass) where it is available but 
.... It comprises a single species, Equus caballus, whose numerous varieties are... [DOC] [TLE] Canvasback videos, photos and facts - Aythya valisineria | ARKive [PAR] Learn more about the Canvasback - with amazing Canvasback videos, photos 
and facts ... Considered to be the 'king' or 'aristocrat' of North American ducks due 
to its ... This species also eats a variety of insects, crustaceans and small fish. ... 
Breeding birds arrive at the nesting grounds around early April, with the females
... [DOC] [TLE] Hinterland Who's Who - Canvasback [PAR] The Canvasback Aythya valisineria is a wild duck that is found only in North 
America. The adult male, or drake, .... Handbook of North American birds. Volume 
3. [DOC] [TLE] Canvasback - Conservation and Management | Birds of North ... [PAR] Hunting pressure and human activity affect Canvasback activity patterns .... lead-
shot densities reported 19821984 from sediment in ponds in various .... 1993 ) 
and caused wintering Canvasbacks to shift from a plant diet of American wild... [DOC] [TLE] Ducks | North American Bird Species | CCNAB [PAR] There are at least twenty-eight types of ducks living in North America, not 
included in these water birds are the eiders, loons, mergansers, smews, scoters 
and... [DOC] [TLE] ODFW, Oregon Wildlife Species: Swans, ducks and geese [PAR] Aug 16, 2016 ... Bird Species of Oregon: In addition to native bird species, ... The drake Wood 
Duck is the most colorful of North American ducks. .... Although not as imposing 
as the Canvasback, the Redhead is a large, handsome, fast-flying diver. ... but 
redhead eggs have been found in the nests of a variety of species. [DOC] [TLE] Global Warming and Waterfowl - National Wildlife Federation [PAR] One of the most important waterfowl breeding areas in North America is the ... 
Inhabitants of large prairie marshes during the summer, canvasbacks are wary 
birds that ... A major part of their diet is wild celery, which gives their flesh a rich 
taste. [DOC] [TLE] Aythya valisineria - BioKIDS - University of Michigan [PAR] Canvasbacks breed in the prairie pothole region of central North America, from 
Colorado ... There are a variety of courtship displays used between mates: the ... 
the next longest recorded lifespan in a wild canvasback was 16 years 11 months. 
.... Accessed December 05, 2008 at http://bna.birds.cornell.edu/bna/species/659. [DOC] [TLE] Waterfowl ID - Ducks Unlimited [PAR] Green-winged Teal  Wood Duck  Blue-winged Teal  American Wigeon  View 
All Dabbling. Diving Ducks. Canvasback  Redhead  Bufflehead  Lesser Scaup. [DOC] [TLE] Aythya valisineria - US Forest Service [PAR] ABBREVIATION : AYVA COMMON NAMES : canvasback canvas-backed ... 
ORDER : Anseriformes CLASS : Bird FEDERAL LEGAL STATUS : No ... During 
winter,

Question: The canvasback is a wild North American variety of this bird
Answer: a duck