BUFFALO, N.Y. — For the last few summers, visitors to Delaware Park have gotten used to seeing the bright pink flamingo paddle boats on the water. This year, they have a new friend, and he stands out.

Buffalo’s got a thing for ducks. Remember the giant duck that paid a visit to Canalside a few years back? Or the Duck Derby? And just when you thought that the city was going to the ducks, it looked ...