ANSWER: Canada Goose. The photo is really scary looking! It's just a different perspective of a common bird. The silly goose was scared for his life and certainly was not concerned about appearances!
While at Kensington Metro Park this last April we watched a wild goose chase. And it was really wild! That swan certainly did not want the goose in his part of the lake, and pursued him relentlessly until the goose left. Wild raucous affair to witness!