What specialized method of chick transport is a hallmark trait for many grebe species?

Answer

Chicks are immediately taken onto the parent's back

Grebe chicks are often immediately placed on the parent's back after hatching, tucked securely under the feathers, offering warmth, protection, and mobility as the parents forage.

What specialized method of chick transport is a hallmark trait for many grebe species?
birdclassificationfamilyduckGrebe