These Top Flight Blue Bill Duck Decoys by Avian X are oversize, open water Blue Bills. The six pack includes 3 Greater Blue Bills and 3 Lesser Blue Bills in 2 different positions. The Greaters have a green tucked head, which is how they feed on open water, and a low tail for bigger surface area. The Lessers have a purple, rounded higher head and a big tuck.
Add these to your spread for a great realistic look.