I saw the first one (male Calliope) on the 18th, and today there were quite a few flitting about and coming to feeders.  Yesterday I saw a male Rufous briefly – heard it before I saw it, and it didn’t stay long.  This evening I even had two at a time on a feeder, so they’re starting to come back!  Makes me happy!  Most zoom in and out quickly so too hard to identify for sure, but most I’ve seen closely are male Calliopes.
Jennifer Alban