Then, what kind of bird has webbed feet?
Webbed feet are ideal for birds that swim, on the water's surface or under. In fact, they're such a nifty adaptation that they evolved, independently, in several bird groups. Ducks and geese have them, as do gulls, cormorants, loons, pelicans, penguins, puffins and boobies.
Secondly, where are grebes found? In the winter, western grebes are found on saltwater bays. During breeding season they are found in freshwater habitats. Western grebes winter in large flocks and nest in colonies. The white-tufted grebe is found in Argentina, Bolivia, Brazil, Chile, the Falkland Islands, Paraguay, Peru, and Uruguay.
Consequently, do they have webbed feet?
In humans it is considered unusual, occurring in approximately one in 2,000 to 2,500 live births. Most commonly the second and third toes are webbed or joined by skin and flexible tissue. This can reach either part way up or nearly all the way up the toe.
What are birds feet made of?
A bird's feet and toes are made up mostly of tough tendons and bones. The feet don't have very many nerves, blood vessels or muscles. This is what enables a bird to land on cold metal perches or walk on ice when temperatures drop.