Ключевые слова: albellus, animal, aqua, aquatic, bird, coat, drake, duck, endangered, feather, fledgling, fowl, goo sander, goosander, level, male, mergellus, mergellus albellus, mergus, muscovy, nastatorial, pecker, pelage, plumage, plume, quill, sawbill, shel duck, sheldrake, shelduck, smew, water, water level, waterbird, wet, wildlife,