Great advice already, and you can also call the hatchery in case something went wrong on that end, verify they put your correct phone number on the box, there wasn't just an errant label somewhere with no chicks associated with it, etc. I agree you should have them 40-48 hours after hatching. sounds like they hatched 10/19 so first thing 10/21 morning, you should get a call from your local post office about a chirping box, which should have your name and phone number on the label. I haven't bought from Meyer, but live in rural AZ and have had several successful shipments from Hoovers in Iowa, which ships out of the Minneapolis distribution center last I tracked, so similar time frames probably.