You can also order chicks on line, but, I caution you that if you only order a small number (Ideal will ship smaller numbers of chicks) they will include "packing peanuts" (extra chicks) to keep the ones you ordered warm. We ordered 8 specialty chicks, and they included 6 more packing peanuts. I was able to find a home for them, but, there are no guarantees that anyone will take them off your hands.
Also, if you aren't really, REALLY, sure you want chickens at all, then, I would wait, research, and visit someone that has chickens to see what you are getting into. We just jumped into it, and while it worked out fine for us, there were bumps along the way we thought we were prepared for, but,weren't. For instance, we thought we would just get 4 or 5 chicks to start and that the little playhouse we had that the kids weren't using would make a great coop. Well, we got 6 chicks, and it did work great. Until we found out that two of the six were meat chickens, and 2 of them were roosters. One of the roos and the two meat hens went to freezer camp, and the other roo was rehomed, so we replaced the four with four more, but by then I knew I wanted specific breeds of chickens that weren't available from the local farmers supply stores, so I ordered 8 more from Ideal hatchery, which, as I said, came with 6 little packing peanuts. I learned the hard way that having chickens leads to having more chickens, at least for someone like me that falls in love with them.
Sooooo, our cute little playhouse/chicken coop is now too small, and our 8 little additions are getting big enough that there will be problems finding roosting spaces for everybody without World War C (for chicken, tee hee), so, this week we are having to upgrade to an 8' x 12' shed that we will convert to a shed/coop combo, mostly coop for our once 6 chickens, now 14 chicken flock. Yes 14, not 16, because you will also learn what it means to lose some of your flock to predators, in our case, the family dog that never bothered your older chickens, but, is obsessed with chasing and tackling the younger ones.
Oh, and we also added two turkeys so poultry fanaticism knows no species boundaries.