I agree that you should have at least 2 based on our experience. We had 4 from last year, then this year we ended up with a random assortment taken in from others. We got 2 from a school egg hatching project from a friend's daughter (she raised them for the first 2 weeks), 2 from another friend, and 1 from a friend of our daughter's who got a single chick as an easter present who was being raised in a cardboard box. Here's what happened: the 2 from the egg hatching project stick together all the time; the 2 we got from another friend ended up to be 1 as 1 was a rooster (got rehomed) - that single one has no friends and gets picked on; the single one we got from the easter gal has no friends and thinks she's a dog (hangs our with our lab) - she's also near the bottom of the pecking order. I had hoped since they were all chicks they'd bond but they didn't. The original group are all a 'flock' but the random assortment that showed up at different times never bonded together and get picked on by the 'big girls'. Now that they are all grown, I can still see the patterns from when they were little. The 2 from the egg hatching project are bigger than all the rest and have made their own little 'flock' that definitely doesn't include the other 2 young ones. They all get along ok but the 2 singles are loners. Luckily they are pets too so they get supervision and attention but I feel bad for them - didn't know this would happen. They have a good life but if I had known, I would have done it differently. Just my experience with this for what it's worth.
