This video from the Cornell Lab of Ornithology in the USA says about itself:
5 June 2015
Northern Shovelers are dabbling ducks, meaning that they tip up to feed on vegetation in shallow water, and they do not dive. Look for them on flooded fields and small bodies of water. The green head and chestnut flanks indicate this is a male; both sexes have a distinctive, oversized bill that gives them their name.