The feathers on the head are molting and regrowing for the next season.
The California Quail's head plume, or - Audubon California
California Quail - raincoastphoto
California Quail's head plume, or topknot, looks like a single feather, but it is actually a cluster of six overlapping feathers. : r/Awwducational
California Quail Overview, All About Birds, Cornell Lab of Ornithology
California Quail - raincoastphoto
A California Quail couple sharing a fencepost. Love their floppy head feathers! : r/aww
birds of a feather Quail, Bird feathers, Birds
Gambel's quail - Wikipedia
California Quail - raincoastphoto
California Quail
Male Californian Quail Head Feathers Plume Stock Photo 790186657
California Quail Overview, All About Birds, Cornell Lab of Ornithology
The Feather Atlas - Feather Identification and Scans - U.S. Fish and Wildlife Service Forensics Laboratory
California Quail Overview, All About Birds, Cornell Lab of Ornithology