Verdin

 The Verdin thrives in the desert.  Also in arid brushland .  They feed on insects , perches on flowers to get the nectar.  They also visits hummingbird feeders.  They are found in pairs or are alone..

They nest in a bulky, twiggy globe with entrance on the side.   They are very small, mostly gray.  Adults do have yellow heads.
Juveniles are a plain gray and a pale bill base.

Enjoy.  Kitfoxgal