Southern Giant-Petrel Macronectes giganteus

Widespread and fairly common; readily seen from shore and ferries in Tierra del Fuego. Giant-Petrels are known as vultures of the Southern Ocean and can scavenge with gulls at sewage outflows or with albatrosses at fishing boats; often follows ships. Very large (size of smaller albatross) with a very big pale bill that always has a diagnostic pale greenish tip. Plumage varies; most birds are dark overall or with whitish head, rarely whitish head and underparts; scarce white morph is snow-white overall with scattered black feathers.