Golden-crowned sparrow, moulting

It looked like an immature one to me, because of the scruffy face and head. I was later informed that all golden-crowns go through a spring moult.

However: the pointy tail feathers indicate this one is immature, and they’re in the process of being replaced (note the shorter, round middle feather).

   4 April 2021
   1/500s    f/5.6   300mm   ISO 1250
golden-crowned sparrow