My husband and I purchased a derelict Farm in Tennessee two years ago, and this was actually our first spring here. We are new to chickens and purchased 10 sex link hens and 1 Buff Orpington rooster the middle of June. They were about 8 weeks old. Not my first choice but they were available and priced right. One of the hens has been laying for 4 days and we anticipate the others will in the next few weeks. My daughter and her husband also live on the farm and brought home 3 adult laying hens this past Friday evening, after the resident chickens were already roosting for the night. We put the new girls in the coop with no apparent upset. All 3 laid an egg on Saturday but none today (Sunday). They won't leave the hen house though. They are eating and drinking but the other hens are mean to them. Should I be concerned?