Greetings All

The warbler in question is an Orange-crowned of the race orestera, which
breeds in e. BC and easternmost WA and is not a rare migrant through here. This
race is often ID'd as a MacG because of the gray cheek/crown and partial white
eyering. Note, however, that a MacG would have gray on chest and white or gray
on throat, not yellow. Also, the broken white eye-ring is narrow, not fat arcs
like MacG. A Nashville would have a brighter complete white eyering; also
note the dull streaks on this birds chest, a feature of Orange-crowned Warbler
but not the other species considered.

Our breeding OCWAs (race lutescens, which means yellow or yellowish) lacks
the extensive gray on the head and cheek (which orestera has in fall only, if I
remember correctly) and tends towards a brighter green-yellow. I like the old
name: Lutescent Warbler.

Cheers
Steven Mlodinow