What Mountain Bluebirds do on a Friday night in RMNP...

While many of the migratory birds have left the Park, the Mountain Bluebirds have been flocking lately.  One evening, while waiting for the elk rut, I spotted this group of Mountain Bluebirds -- each working on a new set of feathers. Juveniles are speckled, males are mostly blue and females  grey-brown with a hint of blue on their wings and tails.  Oh, and a Pine Siskin joined the group, too!