Ruby crowned kinglet

Description:

Small bird, active forager, from tree top to ground level. Distintive wing bars and eye ring.

Habitat:

Urban California Central valley backyard. Only seen in winter months.

Notes:

I posted this bird last winter and got several suggestions Bell's vireo, and Orange crowned warbler, but the pixs were low quality. I was thinking Kinglet or Cassin's Vireo. Help Please. Thanks for ID help...