Feather-pecking baby chicks?

[purewellspring]

I've got 8 chicks in the brooder together, all just over 2 weeks old, all seemingly thriving. But I've got one super odd looking chick, biggest by far, with strange feathers (to me, anyway, but this is my first hatch and my first chicks, so I know very little). Anyway, this chick has been feathering out quickly the last week, and I just started noticing yesterday that the other chicks seems to be pecking at its feathers. Not hard, almost as if they're grooming it. And the groomed chick doesn't seem to mind at all, just lays there and takes it. But should I worry, or try to stop it? Is this a bad habit, or something else?



This is the one getting pecked at/cleaned off...

 

[sourland]

As long as they are not drawing blood, I would not worry. Baby chicks pick at 'things'. It's how they learn what is to be eaten and what is not edible. Many panic when newly hatched chicks start pecking at eyes and toes - just normal chick behavior that they eventually outgrow.