We've watched them enough to be able to tell them apart now.
Fauntleroy (waiting in the wings) is bigger than Penny, and he's got the puffy feathers on his head. Penny is more petite and has a thinner head.
There has been quite a bit of activity at the nest today. Notably the parents spend less time sitting on the nest now. The wee peeps are getting bigger, stretching their wings, but still sleeping much of the time, just like babies.
We will surely miss this little family when they fly the coop!