American black ducks, mallards and northern pintails are common winter visitors. Usually by mid-April, mallards, pintails, and Canada geese are present in large numbers. There are also very large seasonal concentrations of northern pintails, loons, grebes, swans and cranes. In the wintering wildfowl include wigeons, teals, pintails and Bewick's swans. Other area waterfowl include blue-winged and green-winged teals, gadwalls, wood ducks, and pintails. Among them particularly numerous are tufted ducks, pochard, and northern pintails. It includes the pintails, most teals, and the mallard and its close relatives. Its longboards include drop-throughs, pintails, double-kicks, square tails and mini cruisers. The noisemakers, codenamed Pintails, were attached to each dummy to simulate rifle fire. Kicktails are also found on specific longboards such as the "schlongboard" and on some pintails. Unlike other pintails, the males are similar in appearance to the females, though larger. These boards are typically called pintails.