What feature in breeding plumage gives the Horned Grebe its common name?

Answer

Glorious, golden-buff ear tufts

The common name, Horned Grebe, is derived from the spectacular, fan-like golden-buff ear tufts displayed during the breeding season.

What feature in breeding plumage gives the Horned Grebe its common name?
raritybirdwaterfowlGrebe