Canada Groups Humane Sample 
10,000 Birds
JULY 25, 2014
(Indeed, some reports take the term ‘noxious’ quite literally, stating that knapweeds exude natural herbicides to discourage competition and can cause irritation to the skin of humans trying to pull them; one rumor gives them the power to induce ‘hand cancer’ if not handled with gloves.)
10,000 Birds
NOVEMBER 7, 2017
The Crossley ID Guide: Waterfowl covers every residential, migrating, vagrant, exotic, and introduced swan, goose, dabbling and diving duck in North America (Canada and the United States): 62 Species Accounts on four swan species and one vagrant subspecies; 15 goose species; 46 duck species; plus accounts for hybrid geese, ducks and exotics. .”
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