I just moved my 9 wk old ducks from a dog kennel, stock trailer setup to their 4-season duck tractor. They were moved today, and seemed okay, albeit a little reluctant to go outside. They didn't really eat, but they drank a bit. Then this evening after I shut them in for the night, I checked on them once more. One duck hen in particular was pecking at other ducks and pulled out a few feathers. They are starting to get their second molt but they shouldn't eat each other's feathers, right? A few of them were eating shavings. This concerned me so I took some feed and put it in a shallow pan. They have some in their automatic feeder, but they hadn't ate much of it. They started to eat the feed but it is a new feed. Should I be worried?