1.Previous
3.Next

(though the sizes can overlap between younger males and females).

Feathers

Grebes have unusual plumage. On average, grebes have 20,000 feathers, the third highest number recorded among birds, after the Tundra Swan and the Emperor Penguin. The feathers are very dense and strongly curved. In the larger species, feathers are denser but shorter, while the opposite is true in smaller species, where the feathers are longer but less dense.

The density and length of feathers are correlated exponentially

1.Previous
3.Next