What to Feed Chickens: A Complete Feeding Guide by Age, Season, and Safety

Get the feed wrong for even a few weeks and you'll see it: soft-shelled eggs, slow-growing chicks, or a flock that just doesn't thrive. Knowing exactly what to feed chickens at each life stage is the single biggest factor separating a healthy, productive backyard flock from one that struggles. The good news is that chicken nutrition isn't complicated once you understand a few core principles — and this guide covers all of them.

What Chickens Eat Naturally (and Why Diet Matters)

Chickens are omnivores by nature. In the wild, their ancestors scratched through underbrush eating seeds, grasses, insects, worms, and the occasional small lizard or frog. That instinct hasn't gone anywhere — your backyard hens still want to forage, peck, and hunt for protein alongside their regular feed.

This matters because a chicken's diet isn't just about calories. Hens need the right balance of protein, calcium, vitamins, and minerals to grow feathers, build strong bones, and lay consistent, strong-shelled eggs. A diet that's heavy on treats and light on balanced nutrition will show up fast in egg production and overall flock health.

Commercial Feed Types Explained: Starter, Grower, Layer, and Flock Raiser

Walk into any feed store and you'll find bags labeled for different life stages. Here's what each one actually does:

• Starter feed — For chicks from hatch to about 8 weeks old. It's high in protein (18-20%) to fuel rapid early growth.
• Grower feed — For pullets roughly 8 to 18 weeks old. Protein drops slightly (16-18%) as growth slows and bones mature.
• Layer feed — For hens 18 weeks and older that are actively laying. It contains added calcium (around 4%) to support eggshell formation, along with moderate protein (16%).
• Flock raiser (all-flock) feed — A versatile option for mixed-age flocks or flocks that include roosters. It has moderate protein and no added calcium, meant to be paired with a separate oyster shell dish so birds can self-regulate calcium intake.

Choosing the right bag isn't just a technicality — feeding layer feed to young chicks can overload their kidneys with calcium, while feeding starter to laying hens leaves them calcium-deficient.

How Much to Feed Chickens Per Day (By Age and Flock Size)

A general rule of thumb for chicken feed for backyard chickens: an adult laying hen eats roughly 120-150 grams (about 1/4 to 1/3 pound) of feed per day. Chicks eat far less, starting around 10-15 grams daily and increasing steadily as they grow.

• Chicks (0-8 weeks): Free access to starter feed at all times; they'll self-regulate intake.
• Pullets (8-18 weeks): Free-feed grower feed; appetite increases noticeably during this growth phase.
• Laying hens (18+ weeks): About 1/4 pound of layer feed per bird per day, adjusted for treats, foraging access, and season.

For a flock of six hens, that's roughly 1.5 pounds of feed daily, or about 10-11 pounds per week — useful math when budgeting feed purchases.

Safe Kitchen Scraps and Treats Chickens Can Eat

Chicken treats and scraps are one of the most enjoyable parts of keeping a flock, and most kitchen leftovers are fair game in moderation. Safe options include:

• Leafy greens (lettuce, spinach, kale, chard)
• Cooked vegetables (squash, carrots, broccoli, sweet potato)
• Fruit (berries, melon, apple without seeds, bananas)
• Cooked rice, pasta, or oatmeal
• Plain cooked eggs or scrambled eggs (yes, really — it's a great protein boost)
• Mealworms and other high-protein bugs, especially during molting

The golden rule: treats should never exceed 10% of a chicken's daily diet. Too many scraps dilute the balanced nutrition they get from formulated feed and can lead to nutritional gaps over time.

Foods That Are Toxic or Dangerous to Chickens

Knowing foods chickens can't eat is just as important as knowing what's safe. Keep these away from your flock entirely:

• Avocado skin and pit (contains persin, toxic to poultry)
• Chocolate and anything containing caffeine
• Raw or dried beans (contain hemagglutinin, a toxin destroyed only by thorough cooking)
• Onions and garlic in large quantities (can taint egg flavor and affect blood cells over time)
• Salty, sugary, or heavily processed snack foods
• Moldy or spoiled feed and scraps
• Green potato skins and green tomatoes (contain solanine)

When in doubt, leave it out. A chicken's digestive system is efficient, but it's not built to handle toxins the way ours can.

Feeding Schedule: Chicks vs. Pullets vs. Laying Hens

Consistency matters more than complexity. Chicks should have constant access to starter feed and clean water from day one, with feeders and waterers kept at chest height to encourage natural eating posture and reduce bedding contamination.

As pullets grow, raise feeders and waterers gradually so they sit level with the birds' backs — this keeps feed cleaner and reduces waste. By the time hens reach laying age, feeders are typically positioned waist-high for an adult chicken, with layer feed available throughout the day rather than in scheduled meals.

If you're just starting out, Peggy's Happy Chickens coops come with feeder-height adjustments built in, making it easier to transition feed stations as your chicks grow into laying hens.

Fresh water should always be available alongside feed, checked at least twice daily, more often in hot weather.

Seasonal Feeding Adjustments (Summer Heat, Winter Cold)

Chickens' nutritional needs shift with the seasons. In summer heat, appetite often drops as birds try to regulate body temperature, so offer cooling treats like frozen watermelon or chilled cucumber, and ensure water stays fresh and shaded.

In winter, chickens burn more calories staying warm, so a slight increase in feed — along with a handful of scratch grains in the late afternoon — helps fuel overnight body heat. Scratch grains aren't a complete feed, though; think of them as a seasonal supplement, not a replacement for layer or flock raiser feed.

Grit, Calcium, and Supplements Chickens Need

Chickens don't have teeth, so they rely on grit — small, hard particles stored in the gizzard — to grind up food. Birds with outdoor access often find enough grit naturally, but confined flocks need it offered separately.

Calcium, usually in the form of crushed oyster shell, supports eggshell strength and should be offered free-choice in a separate dish once hens start laying, especially if you're using a flock raiser or all-flock feed without added calcium. Other helpful supplements include probiotics during stressful periods (like moving or molting) and vitamin/electrolyte mixes during heat waves or illness recovery.

Common Feeding Mistakes Beginners Make

• Feeding layer feed to chicks or non-laying birds, causing calcium overload
• Overdoing treats, which unbalances overall nutrition
• Letting feed get wet or moldy in uncovered feeders
• Assuming free-ranging birds don't need supplemental feed
• Switching feed types abruptly instead of transitioning gradually over 7-10 days

Avoiding these pitfalls early builds habits that pay off in healthier birds and more consistent egg production for years to come.

Frequently Asked Questions

Can chickens eat bread, rice, or pasta?

Yes, in small amounts. Cooked rice and pasta are fine occasional treats, and plain bread is safe but offers little nutritional value, so it shouldn't make up a significant part of the diet. Avoid moldy bread entirely.

How much feed does one chicken eat per day?

An adult laying hen typically eats about 1/4 to 1/3 pound (120-150 grams) of feed daily, though this varies based on breed, activity level, foraging access, and season.

Do chickens need water with their feed, or just dry feed?

Chickens need constant access to clean, fresh water alongside their feed. Dehydration can reduce egg production within hours and is one of the fastest ways to stress a flock, so check waterers at least twice a day.

What's the difference between layer feed and all-flock feed?

Layer feed contains added calcium formulated for actively laying hens, while all-flock (flock raiser) feed has moderate protein and no added calcium, making it suitable for mixed-age flocks or those with roosters. All-flock feed should be paired with separate free-choice oyster shell for laying hens.

Can kids safely help feed backyard chickens?

Absolutely, and it's a wonderful responsibility for children to take on. Just make sure kids know which scraps are safe, use proper handwashing after handling feed or birds, and have adult supervision when managing feeders, waterers, or treat portions until they're comfortable with the routine.