Edited by Jennifer Bryant · Poultry breeder, Animal Science graduate, and Poultry Nerds Podcast co-host.
Baby chicks can often move to an unheated outdoor coop once they're fully feathered and conditions are warm enough, commonly around 6 weeks old. Age alone isn't enough: nighttime temperatures, breed, feathering, and available supplemental heat all matter. Before that, they need a warm, safe brooder. Fluffy down looks cozy, but it can't keep a tiny chick warm on its own.
There's one big exception: chicks raised by a mother hen. She's their heater, bodyguard, and teacher, all in one.
Why Chicks Need Heat at First
Newly hatched chicks can't keep their own body temperature steady. In the brooder, a heat source gives them a warm zone, and they can wander to cooler spots as they like.
Watch the chicks, not just the thermometer. Huddled and peeping loudly under the heat? Too cold. Spread far away and panting? Too hot. Scattered, eating, and napping happily? Just right.
As feathers grow in, chicks need less heat. Most keepers lower it a little each week.
Signs They're Ready
Fluffy down is replaced by real feathers, including on the back and head.
They stay comfy without huddling under the heat.
The weather is mild, especially at night.
Breeds and seasons vary. A spring batch in a warm region may be ready sooner than a winter batch up north.
Make the Move Gently
Practice first. Short supervised trips outside on warm, sunny days are a great start.
Check the nights. Nights can be much colder than days. Move chicks when overnight temperatures are mild for their age.
Start in a secure coop. Give them a few days to learn their new home before they explore the run.
Predators Love Chicks
Small chicks are easy targets for hawks, cats, rats, snakes, and raccoons. Lock them in at night, use hardware cloth instead of chicken wire, and cover the run.
Joining Big Hens
Keep young birds apart from adult hens until they're close to full size. Then introduce them slowly with a see-but-no-touch fence first.
Outdoor Brooders
Some keepers brood chicks outside from the start in a secure, draft-free brooder with safe, steady heat. It can work, but it takes extra planning for weather, power, and predators.
Raising chicks from your own hatch? Learn step by step at Incubation Masterclass.
