This species is found in the southwestern United States and northwestern Mexico. They migrate to western Mexico in the winter. They will nest in old woodpecker holes.
It is the smallest species of New World warbler. Height is 9 - 12 cm. Head, and the upperpart of the body is a soft gray. The underpart of the bird is white. They have a white eyering and a pointed bill. Males have a rust colored patch on their crown of their head. Both genders have a rufous rump area.
For more information please visit https://www.beautyofbirds.com