Lucifer Hummingbird females come in hues from almost white on the undersides to almost rufous. The above female is one of the darkest I've seen. The males find her very attractive though. Here she is hiding in a bush as a male displays to her.
Along Terlingua Ranch Road there's a nice patch of verbena still blooming but I never see any interesting butterflies when I stop to look. Not much of anything blooming at CMO right now. Too hot and dry. Waiting for the summer rains.