White-winged Dove at My Feeder

I got home from work today and found three White-winged Doves at my feeders. Here's a picture of one of them.

I've had one White-winged Dove at my feeders last year. I've only seen one at a time, though. These are juveniles, as was the one last year. I've never seen an adult here. I suppose it's just a matter of time. It's amazing to me how much larger the Eurasian Collared-Doves are than the White-winged Doves.