Mine are molting too. Glad to know what happened to my nice family of Jays! They arrive 4 or 5 at a time, and have been so pretty until lately. Now they're really looking ratty. I thought maybe it was from the weather, but it hasn't been all that wet here, contrary to popular belief.
They're out there now, making lots of noise but everyone's in the bamboo so there must be a predator somewhere close by.