How to Feed Your Backyard Chickens in Summer Heat (And Keep Those Eggs Coming)

Summer is a glorious time in the backyard — gardens are blooming, days are long, and your flock has plenty of room to roam. But as the mercury climbs, your chickens face a serious challenge: heat stress. And one of the most powerful tools you have against it is what goes in their feeder (and waterer).

If you’ve noticed your hens laying fewer eggs, looking sluggish in the afternoon, or panting with their beaks open, their feed and hydration routine may need a seasonal tune-up. Here’s everything you need to know about feeding your flock through the summer months.

Why Summer Changes Everything About Chicken Nutrition

Chickens don’t sweat — they cool themselves by panting, which is far less efficient than sweating. When temperatures climb above 85°F, their bodies shift energy away from egg production and toward temperature regulation. The result? Fewer eggs, lower feed intake, and a flock that’s under real physiological stress.

Here’s the sneaky part: when hens pant rapidly, they exhale carbon dioxide faster than normal. This disrupts the blood’s acid-base balance (a condition called respiratory alkalosis), which actually interferes with eggshell formation. That’s why summer eggs can sometimes have thinner or softer shells — it’s not just the heat, it’s the chemistry happening inside your hen.

Understanding this helps you make smarter feeding decisions.

Rethink the Feeding Schedule

In summer, timing is everything. Your chickens will naturally eat less during the hottest part of the day — and that’s okay. Work with their instincts rather than against them.

  • Feed early in the morning when temperatures are coolest. Chickens are most active at dawn and will eat well before the heat sets in.
  • Offer a second feeding in the evening after the sun starts to drop. This gives them a chance to top up their intake.
  • Skip midday feeding if temperatures are extreme. Digesting food generates body heat, and the last thing your girls need in 95°F weather is a metabolic workout.

Go Lighter on the Scratch and Corn

Scratch grains and cracked corn are beloved treats — but they’re also thermogenic, meaning they produce extra body heat as they’re digested. During a heat wave, heavy scratch feeding can actually make your chickens hotter.

That doesn’t mean you have to cut them out entirely, but shift treats toward cooling, high-moisture options instead, and save the scratch for cooler mornings or as a small evening treat.

Up the Protein — Especially During Molt

Heat stress can trigger early molting in some flocks, and molting birds need significantly more protein to regrow feathers. Even hens who aren’t molting may benefit from a slight protein boost during summer to maintain egg quality on reduced feed intake.

  • Black soldier fly larvae (BSFL) — a sustainable, high-protein treat your chickens will go crazy for
  • Scrambled or hard-boiled eggs — yes, chickens can eat eggs, and it’s an excellent protein source
  • Mealworms — another crowd-pleaser, best used in moderation
  • Switching to a higher-protein layer feed (18–20% protein) during peak summer months

Electrolytes: The Secret Weapon

This is one of the most underused tools in the backyard chicken keeper’s kit. In hot weather, chickens drink twice as much water as usual — and all that extra water dilutes the electrolytes in their bloodstream. Sodium, potassium, and chloride are all critical for proper cell function and, crucially, for eggshell formation.

The fix is simple: add electrolytes to their water during heat waves. You can find poultry electrolyte packets at most farm supply stores, or make a basic DIY version with: 1 tsp salt, 1 tsp baking soda, 1 tbsp sugar, and 1 gallon of cool water. Offer this a few times per week during heat stress, alternating with plain fresh water.

The Best Cooling Treats for Summer

Frozen treats do double duty: they provide hydration and nutrition while lowering your birds’ core temperature. On a scorching afternoon, a frozen snack can be a genuine lifesaver.

  • Frozen watermelon — High water content and chickens absolutely love it. Cut in half or freeze scoops ahead of time.
  • Berry ice cubes — Freeze blueberries, strawberries, or raspberries in an ice cube tray and toss a few cubes in the run.
  • Veggie “muffins” — Fill a muffin tin with water, chopped leafy greens, peas, and herbs. Freeze solid and pop them out as needed.
  • Cucumber slices — Simple, refreshing, and hydrating. No prep needed.
  • Chilled plain yogurt — A probiotic boost plus a cooling treat.

Don’t Forget the Water

  • Offer multiple water stations so birds don’t have to compete
  • Refresh water frequently — warm water discourages drinking
  • Place waterers in shaded areas, not in direct sunlight
  • Add a few ice cubes to the water on especially hot days

Signs Your Chickens Are Struggling With Heat

  • Open-mouth panting or holding wings away from the body
  • Lethargy and huddling in shade
  • Sudden drop in egg production or soft/thin-shelled eggs
  • Pale combs or labored breathing

The Bottom Line

Summer doesn’t have to mean empty nesting boxes or stressed birds. With a few thoughtful adjustments — shifting your schedule, boosting protein, adding electrolytes, and swapping heavy scratch for cooling treats — your flock can thrive even in the heat of summer. Your chickens work hard year-round. A little extra seasonal care goes a long way.

Have a go-to summer treat your flock goes crazy for? Drop it in the comments below — we’d love to add to our frozen treat rotation! And if this post helped you prep your flock for the heat, share it with a fellow chicken keeper who could use the tips.