Raising Baby Chicks: Brooder Setup Week by Week

Few things are as rewarding, or as fragile, as raising baby chicks. In their first weeks of life, chicks cannot regulate their own body temperature, are vulnerable to chilling and disease, and depend entirely on you for warmth, clean water, and the right feed. The good news is that with a properly set up brooder and a clear week-by-week plan, raising chicks is very achievable for first-time keepers. This guide covers brooder temperature, the heat-plate versus heat-lamp safety debate, feeding, the common problem of pasty butt, and the timeline to coop-ready birds at around six weeks.

One honest note before you begin: chicks grow into chickens that can live eight to ten years, and roughly half of straight-run chicks will be roosters, which many areas prohibit. Have a realistic plan for the birds you raise. If you would rather skip the fragile brooder stage entirely, adopting older birds is a fine alternative, as our overview of rescue resources for less common pets describes.

Gathering Your Supplies Before the Chicks Arrive

The most common rookie mistake is buying chicks on impulse and then scrambling to assemble a brooder while fragile, chilled birds wait in a box. Set everything up and run it for a day before your chicks come home, so the heat source has stabilized and you can confirm the warm zone is at the right temperature. Chicks are unforgiving of a cold or improvised start, and the first 48 hours are when losses cluster.

At minimum, have on hand a heat source (a radiant heat plate or, with great caution, a secured heat lamp), a reliable thermometer, a brooder enclosure with a secure lid, a shallow chick waterer, a chick feeder, chick starter feed, paper towels for the first days, and pine shavings for after. A small amount of chick-sized grit is useful if you plan to offer anything beyond starter. Source healthy chicks from a reputable hatchery, feed store, or breeder, and ask whether they have been vaccinated, since that affects whether you choose medicated or unmedicated starter feed. Planning ahead is the foundation of raising baby chicks successfully.

Setting Up the Brooder

A brooder is simply a safe, warm, draft-free enclosure that substitutes for a mother hen. It needs four things: a heat source, a secure floor space, clean water, and chick feed. A large plastic tote, a stock tank, or a sturdy cardboard-lined box can all work for a small batch; the key is enough room that chicks can move toward and away from the heat to self-regulate.

Allow roughly half a square foot per chick at first, expanding the space as they grow because crowded chicks pick at one another. Line the floor with paper towels for the first few days (so chicks learn to eat feed, not bedding), then transition to pine shavings. Avoid slick newspaper, which causes splayed legs. Keep the brooder somewhere predator-proof and protected from drafts, and add a secure lid or screen early, because chicks begin testing their wings sooner than people expect.

Brooder Temperature Week by Week

Temperature is the heart of raising baby chicks successfully. The standard guideline is to start the warmest area of the brooder at about 95 degrees Fahrenheit in the first week, then reduce by roughly 5 degrees each week until you reach ambient temperature, usually around six weeks.

• Week 1: about 95°F in the warm zone
• Week 2: about 90°F
• Week 3: about 85°F
• Week 4: about 80°F
• Week 5: about 75°F
• Week 6: roughly 70°F or matching outdoor temperatures, as feathering completes

Crucially, let the chicks tell you the truth. Always provide a temperature gradient so birds can choose their comfort zone. Chicks huddled together directly under the heat are too cold; chicks pressed to the far corners, panting, are too hot; chicks spread evenly and active are just right. Trust their behavior over the thermometer.

Heat Plate vs Heat Lamp: The Fire-Risk Decision

How you provide that heat is one of the most important safety choices you will make. Traditional heat lamps with infrared bulbs are cheap and effective, but they are a well-documented fire hazard: a bulb that falls into bedding, or a clamp that slips, has burned down countless coops, sheds, and homes. If you use a heat lamp, secure it with multiple independent supports (never rely on the clamp alone), keep it well away from anything flammable, and check it constantly.

Radiant heat plates (sometimes called brooder plates) have become the safer modern standard. They warm chicks by contact and proximity, much like a hen’s body, use far less electricity, run cool to the touch, and pose almost no fire risk. They also let chicks follow a more natural day-night rhythm because they do not flood the brooder with light. For most backyard keepers, a heat plate is the safer and more humane choice; reserve heat lamps for large batches and only with rigorous precautions.

Feeding Chicks: Starter, Water, and the Treat Rule

Newly hatched chicks should eat a commercial chick starter feed, which is formulated with the higher protein (typically around 18 to 20 percent) and balanced nutrients growing chicks need. Starter comes medicated (containing a coccidiostat to help prevent coccidiosis) or unmedicated; choose based on your situation and whether your chicks were vaccinated, and when in doubt ask a poultry-knowledgeable vet or your extension office.

Provide clean, fresh water at all times in a shallow chick waterer they cannot drown in; adding clean marbles or pebbles to a deeper dish reduces drowning risk in the first days. Resist the urge to feed treats early. Chicks need the complete nutrition of starter, and treats dilute it; the standard guidance that treats should stay under about 10 percent of the diet applies even more strictly to chicks. If you do offer anything beyond starter, provide chick-sized grit so they can grind it. We cover the full progression in our guide to chicken feed and nutrition by life stage.

Pasty Butt and Other Early Problems

Pasty butt (pasting up) is the most common early problem when raising baby chicks. Droppings dry and cake over the vent, blocking elimination, which can quickly become fatal if untreated. Check each chick’s rear daily in the first week or two. To treat, gently soften and remove the dried droppings with a warm, damp cloth, taking care not to tear the delicate skin, then dry the chick thoroughly so it does not chill. Pasty butt is often linked to stress or temperature swings, so revisiting your brooder warmth is part of the fix.

Watch also for splayed legs (often from slick flooring, sometimes correctable early with a soft hobble), lethargy, refusal to eat or drink, and any blood in the droppings, which can signal coccidiosis and warrants prompt attention. Our guide to coccidiosis prevention and treatment explains the signs and why clean, dry brooder conditions matter so much. Keep the brooder scrupulously clean and dry; damp bedding drives most chick illness.

Handling and Socializing Chicks

The brooder weeks are the prime window for socializing chicks if you want friendly, confident adult birds. Chicks handled gently and frequently from a young age, with a calm voice and slow movements, generally grow into hens that tolerate and even enjoy human interaction, which makes years of future care far easier. Sit beside the brooder, offer your hand, and let curious chicks approach on their own terms rather than chasing or grabbing.

That said, handle chicks gently and briefly, and always wash your hands thoroughly before and after. This is the right moment to build good hygiene habits, because chicks and chickens can carry Salmonella even when they look perfectly healthy. The CDC advises against kissing or snuggling birds against your face and recommends keeping them out of the kitchen and away from food-preparation areas. Supervise young children closely, and keep handling sessions short so the chicks do not become chilled or stressed. Thoughtful early handling pays off for the entire life of the bird, and it is a quiet but real part of raising baby chicks well.

Moving Chicks to the Coop

Chicks are generally ready to move to an outdoor coop around six weeks of age, once they are fully feathered and outdoor temperatures are mild enough that they no longer need supplemental heat. Rushing fully unfeathered chicks outside in cold weather is a common, avoidable loss.

Transition gradually. Let them spend supervised daytime hours in a secure, predator-proof run on warm days first, then move them out fully once feathered and acclimated. Make sure the coop itself is ready before they arrive, with appropriate roosts, ventilation, and predator-proofing; our guide to coop design and space requirements covers what that home should look like. If you are adding these youngsters to an existing flock rather than starting fresh, do not simply mix them in; follow a proper introduction process to manage the pecking order safely.

Frequently Asked Questions

What temperature should a chick brooder be?

Start the warm zone of the brooder at about 95°F in the first week, then lower it roughly 5°F per week until you reach ambient temperature around six weeks. Always provide a temperature gradient so chicks can self-regulate, and read their behavior: huddling means too cold, scattering and panting means too hot.

Is a heat plate better than a heat lamp for chicks?

For most backyard keepers, yes. Radiant heat plates warm chicks by contact like a mother hen, use little electricity, run cool, and pose almost no fire risk. Heat lamps are effective but a serious documented fire hazard and should only be used with rigorous, redundant securing and constant supervision.

What should baby chicks eat?

Chicks should eat a complete commercial chick starter feed (around 18 to 20 percent protein), available medicated or unmedicated, with clean fresh water always available in a shallow, drown-proof waterer. Avoid treats early; they dilute the balanced nutrition chicks need during rapid growth.

How do I treat pasty butt in chicks?

Gently soften and remove the dried droppings caked over the vent using a warm, damp cloth, being careful not to tear the skin, then dry the chick fully so it does not chill. Pasty butt is often linked to temperature stress, so check and stabilize your brooder warmth as well.

When can baby chicks go outside to the coop?

Chicks are usually ready around six weeks, once fully feathered and when outdoor temperatures are mild. Transition gradually with supervised daytime trips to a secure run before the full move. Make sure the coop is predator-proof and properly set up first, and introduce them carefully to any existing flock.