Raising chicks from day-old fluffballs to fully feathered pullets takes 6–8 weeks of active management, then another 10–16 weeks of growing out before the first egg. Each week brings visible changes and specific management transitions. This week-by-week guide tells you exactly what’s happening, what to watch for, and what decisions to make at each stage.
Quick Facts
| Week 1 | 95°F brooder, paper towels over shavings, chick starter |
| Week 2 | 90°F, remove paper towels, begin handling daily |
| Week 3–4 | 85°F, chicks feathering out, can introduce small treats with grit |
| Week 5–6 | 75–80°F, most feathers in, begin outdoor access on warm days |
| Week 7–8 | Fully feathered, ready for permanent outdoor housing |
| First Egg | 18–24 weeks depending on breed |
Weeks 1–2: Critical Early Stage
Week 1 is the highest-risk period. Chicks arrive stressed from shipping or hatching, their temperature regulation is nonexistent, and they need to learn to eat and drink within the first few hours. Brooder temperature at 95°F (floor level under heat source), paper towels over shavings for the first 3 days, fresh water with marbles in the base, and chick starter available free-choice.
Monitor constantly in the first 48 hours. Losses in the first 24–48 hours (‘failure to thrive’) usually result from chilling, dehydration, or being outcompeted for access to warmth and water. Ensure every chick is drinking. Watch for pasty butt (vent blocked with dried droppings) and clean it immediately if found — a blocked vent can kill a chick within hours. By the end of week 2, chicks should be noticeably larger, more coordinated, and developing their first real feathers on wings and tail.
Weeks 3–5: Feathering and Growing
This is the most dramatic growth phase. Chicks transform from fluffy balls to gangly adolescents as flight feathers, wing feathers, and body feathers replace the down. Reduce brooder temperature 5°F each week. By week 4 (75–80°F target), most chicks are spending significant time away from the heat source.
Introduce treats for the first time in week 3 — but only with chick-sized grit provided. Starter feed can be eaten without grit; anything else (greens, scratch, vegetables) requires grit to digest. A small dish of chick grit should be available from the moment anything beyond starter is offered. Begin daily handling sessions to acclimate chicks to human contact — 5 minutes per chick of gentle holding each day produces birds that are calm and easy to manage as adults.
Weeks 6–8: Transition to Outdoors
At 6 weeks, most standard-breed chicks are substantially feathered and can tolerate outdoor temperatures above 65°F for supervised daytime access. Begin with short (1–2 hour) outdoor sessions on warm, calm days, returning chicks to the brooder at night. This outdoor exposure begins building immunity to local pathogens and allows foraging behavior to develop.
Full transition to permanent outdoor housing typically happens at 7–8 weeks when chicks are fully feathered. The coop must be secure from predators and have appropriate-sized roosts and feeders. Night temperatures must be above 50°F for the first week outdoors without supplemental heat. If integrating with an existing adult flock, a see-but-can’t-touch separation of 2–4 weeks prevents severe aggression.
Frequently Asked Questions
When can chicks go outside permanently?
At 6–8 weeks when fully feathered, provided night temperatures are above 50°F. Fully feathered chicks regulate body temperature effectively and don’t need supplemental heat. Their first night outside is often the most stressful — check on them at dusk to ensure they’ve found the roost rather than huddling on the floor.
How do I stop chicks from being picked on by adult hens?
Size matters most — integrate when chicks are as close to adult size as possible (12–16 weeks for most breeds is better than 8 weeks). Use a physical barrier for 2–4 weeks of visual introduction before direct mixing. Provide multiple feeding stations, adequate space, and places for smaller birds to escape. Never integrate just one or two chicks into an established flock — they absorb all the aggression.
What vaccinations do chicks need?
The most important vaccination is Marek’s Disease, ideally given at hatch (most hatcheries offer this). Coccidiosis vaccination is available and relevant if you plan to use non-medicated feed. Beyond these, vaccinations for Newcastle Disease and Infectious Bronchitis are available and used in some commercial and high-risk situations. Most backyard flocks rely on medicated starter for coccidiosis prevention rather than vaccination.
Do chicks need grit from day one?
Chicks eating only chick starter don’t need grit — commercial starter is ground fine enough that grit isn’t required for digestion. Grit becomes necessary the moment any food other than starter is offered. Provide chick-sized granite grit (not oyster shell — that’s calcium, not grit) free-choice from the first time you offer treats.
How often should I clean the brooder?
Daily spot-cleaning (removing wet areas) and complete bedding changes every 3–5 days depending on flock size. A larger brooder needs less frequent full changes; a small, crowded one needs more. The smell test applies — if you smell ammonia when you check on the chicks, clean immediately. Ammonia damages chick respiratory systems more severely than adult birds.
From Our Community
Q: My chicks keep piling on each other — is that normal?
A: Piling means they’re cold. Raise the heat source or lower it closer to the brooder floor. Comfortable chicks spread out and move around freely.
Q: When is it safe to put chicks with adult hens?
A: Wait until chicks are fully feathered (6–8 weeks) and as close to adult size as possible before integration. A see-but-can’t-touch separation period first dramatically reduces injury.
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