February 27, 2009 09:22 AM
On a bright day in early September this little guy was sunning on a windowpane—a sorta dirty windowpane, but I don’t do windows. Besides, a less clean pane is easier to hang onto if you’re a butterfly. He was small enough that I could cover his wingspan with my thumb, but active enough to get my attention by rhythmically alternating his wing position from flat against the glass to folded vertically, and back . . . and forth . . and back . . and forth. Makes you wonder why. Probably a territory display since Emperors are quite territorial and aggressive toward other males. And it may look pretty sexy to cute little females too!
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