a cairina moschata resting by the stream, peacefully sleeping.

alertness aquatic balance beak behavior bill bird breeding cairina camouflage creek diving duck ecosystem environment evolution eyes feathers feeding flight flock flocking foraging freshwater gliding graceful growth habitat hunting juvenile migratory moschata movement natural nature nest nesting nurturing observation peaceful pond predator prey protection quack quiet reflection rest restoration ripples river secure shallow social soft splash stream survival swimming tail territorial tranquil undefined waddle water waterfowl webbed wetland wild wings