We ordered chicks, poults, and keets this past July. The chicks and poults did awesome from day one. Keets, I lost more then I would have liked. But they did give 3 extras. I ordered 15, received 18. I lost 5. Mostly whites, so I’m thinking it might be genetic weakness? Don’t know.
We just placed a second order from the same hatchery (crackle) for a late April hatch.
Just because they CAN send as soon Jan/feb doesn’t mean you HAVE TO have them sent then

At least crackle gives the option to pick when you’d like them. My guess is other hatcheries do too, but I could be wrong.