Townsend's Warbler

This little bird flew into the greenhouse glass today, and, while momentarily stunned, was picked up by Angel. Angel brought him to show me, and as we were taking his picture and checking his vitals, he flew up into the tree above where I'm building a fence. Hence, I dubbed him fencefinch. But his actual ID is Townsend's Warbler. After a few more minutes catching his bearings in the tree, he flew away.