Describes something that has feathers or a plume.
El pájaro penachudo voló alto, mostrando su impresionante plumaje a todos los que lo miraban.
The feathered bird flew high, showing its impressive plumage to everyone watching.
El ave penachuda voló majestuosamente sobre el lago al amanecer.
The plumed bird flew majestically over the lake at dawn.