The winners of Invasive Species Contest 2012: Invasive or Non-Native Birds!
1st Place with 246 points:
From kwanjin: "Baby House Sparrows waiting to be fed. West Valley City, UT, 2009, Zone 6b."
2nd Place with 221 points:
From mygardens: "Canada geese have become a huge problem in our NY area. We love geese as long as there are not too many. For whatever reason, we have had the same two for years. We call them our guard geese as they keep others away. We remove & mark the eggs each year, replacing the new ones with last year's eggs."
3rd Place with 185 points:
From arctangent: "Mute swans, Cygnus olor. This species was introduced from Europe in the 19th century. In the Great Lakes region (and probably throughout the USA) it now predominates, having driven out the native trumpeter swans. They affect other native waterfowl as well as aquatic plants."
Runner Up with 169 points:
From ginger749: "This looks to me like “Mozart” conducting a one legged Orchestra.
Runner Up with 139 points:
From mcash70: "European Starling, perhaps the most abundant bird in North America, was introduced from the Old World in 1890, known to damage many types of crops. Photo taken in my zone 3a garden, BC, CAN."
Runner Up with 135 points:
From weeds4wildlife: "Mute Swan (Cygnus olor) photo taken in Cape May, NJ"
Runner Up with 125 points:
From DMersh: "Canada Goose on River Medway, Kent, UK.
This very hardy goose has established itself over a vast range outside its native Canada and seems able to survive almost anywhere."