Eared Grebe
Podiceps nigricollis
Appearance
Range & Habitat
Reciprocal relationships
They nest in large colonies or groups where there is enough vegetation to protect their nest site. They migrate to spend their winters in the warmer United States. A main threat to colonial nesters such as the eared grebe is human activity that disrupts the nesting sites. The disturbance causes a heating or cooling of the nest so that the eggs may fail to hatch. Pollution and development are other human threats to the species.