(1) The total population of seabirds, waterfowl , and shorebirds may exceed a million birds.(2) Another new duck for us was the exquisite Harlequin Duck, a waterfowl rarely spotted close to shore.(3) Clinically normal waterfowl and sea birds may introduce the virus into flocks.(4) Now that late fall has settled in, waterfowl are the main attraction.(5) The black-headed duck most often parasitizes other waterfowl and marsh-nesting birds.(6) The actual impact of Mute Swans on native waterfowl and their habitats in North America is poorly known.(7) Habitat seemed the next best criterion to search by, since many waterfowl shy away from inland bodies of water.(8) Birders generally watch shorebirds in summer, raptors in autumn, and waterfowl in winter.(9) We saw lots of waterfowl , mostly Canada geese and mallards with the odd Gadwall.(10) The green central island is inhabited by ducks, cormorants, Canada geese and other territorial waterfowl .(11) And practiced duck hunters occasionally kill waterfowl over 80 yards away with a 12 gauge shotgun.(12) Large birds including ptarmigan and waterfowl are the most common prey item of the Gyrfalcon.(13) These are only a few of many places to try your hand with waterfowl .(14) Among waterfowl , the Canada Goose is the least loved, especially by golfers.(15) We were baffled by a waterfowl just like this one back in September.(16) A modest duck pond becomes exciting when one realizes that not all waterfowl are Mallards and Canada Geese.