Sometimes when I'm banding I'll catch a species of bird I've never handled before and that can be both exciting and frustrating. Then there are the birds I catch that I have handled before but one individual is different enough to give me pause. I had that experience recently when I walked up to one of my nets and pulled out a bird that made me say "What the...."
Here's a close-up:
Take a look:
What a cool bird. This is an individual I would love to catch again and see how the next molt makes him look. Should be a normal male Redstart plumage.
Remember, just because something doesn't look exactly like the field guide picture doesn't mean it's a hybrid or a previously undiscovered species.