The Chubut Steamer Duck or White-headed Flightless Steamer Duck (Tachyeres leucocephalus) is a flightless duck endemic to Argentina.
It is the most recently recognized species of steamer duck, being described only in 1981. This is because it is only found along a rather small and sparsely populated stretch of coast around the Golfo San Jorge in southern Chubut and northern Santa Cruz Provinces, and because steamer ducks in general look fairly similar in plumage.
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Diet / Feeding:
Ducks feed on larvae and pupae usually found under rocks, aquatic animals, plant material, seeds, small fish, snails, and crabs.
Instead of “teeth,” ducks have serrations (saw-like edges) on their bills that allow them to filter food out of the water.
Captive birds are often fed commercially prepared duck food pellets – if there are insufficient natural resources available to sustain them. As they feed on insects, they are very useful in ridding gardens or lawns of harmful bugs.