I was looking at Ideal Poultry in Texas and if you order a small order they said they will include male chicks for heat. This is from their web siteWe are in Washington in the PNW. We had 28 chicks shipped from Iowa (welp hatchery) and they all are doing well, we are into the second week and no loss. I think a lot depends on the health of the stock they came from, definitely you run a little more risk with only 4 because there are not as many to keep each other warm, but as long as the trip only takes 2-3 days you should be okay. But be prepared, loss does occur and that is why they offer replacements from most hatcheries. Good luck with your new babies!
If your order consists of a very small number of items (less than the equivalent of a quarter of a box), there may be male chicks placed in the box for warmth or comfort during shipping. The breed of chicks included varies from order to order and unfortunately we are unable to identify the breed. If you do not wish for us to include males in your order, you may choose to purchase insurance for your shipment at a minimal cost.