Summer Flock Care: Keeping Your Chickens Cool & Productive in the Heat

Heat is one of the biggest threats to backyard flocks. Chickens don't sweat — they regulate body temperature by panting and holding their wings away from their bodies. When temperatures climb above 90°F, production drops, feed intake falls, and heat stress becomes a real danger. Here's how to keep your flock comfortable and productive all summer.

Signs of Heat Stress

Know what to watch for so you can act quickly:

• Heavy panting with beak open
• Wings held away from the body
• Pale comb and wattles
• Lethargy or stumbling
• Reduced egg production or thin-shelled eggs
• Reduced feed intake

A hen showing multiple signs of heat stress needs immediate intervention — move her to a cool, shaded area and offer cool (not ice cold) water right away.

Water Is Everything

In summer, water is your most important tool. Hens drink 2–3 times more water in hot weather than in cool weather. A hen that runs out of water on a hot day can stop laying for days or weeks.

• Check and refill waterers at least twice daily in peak heat
• Add extra waterers so every bird has easy access
• Place waterers in the shade — hot water discourages drinking
• Add ice to waterers during heat waves to keep water cool longer
• Consider adding electrolytes to the water during extreme heat (Sav-A-Chick is a good option)

Shade & Ventilation

• Make sure your run has adequate shade — tarps, shade cloth, or natural tree cover all work
• Open all coop vents and windows during the day to maximize airflow
• Add a box fan to the coop if temperatures regularly exceed 90°F
• Avoid closing the coop up tight at night until temperatures drop — nighttime heat buildup is dangerous
• Deep litter in the coop generates heat — keep bedding thinner in summer

Feed Adjustments for Summer

Hens eat less in hot weather, which can affect egg production and nutrition. A few adjustments help:

• Feed in the morning and evening when it's cooler — hens are more likely to eat when temperatures are lower
• Reduce or eliminate scratch grains — scratch generates body heat during digestion and isn't helpful in summer
• Offer cool treats — frozen watermelon, cucumber slices, and cold berries are favorites and help with hydration
• Continue oyster shell free-choice — heat stress can cause thin shells, so calcium access is important

Egg Production in Summer

Expect some drop in production during heat waves — this is normal and temporary. Hens redirect energy from egg production to staying cool. Production typically rebounds when temperatures moderate. Thin-shelled or soft eggs during heat waves are also common and usually resolve on their own.

Pest Pressure Peaks in Summer

Mites, lice, flies, and other pests are most active in warm weather. Stay on top of:

• Weekly coop inspections for mites (check roosts and cracks at night)
• Keeping the run dry — wet areas attract flies and breed bacteria
• Providing a dust bath area — hens use dust baths to control mites and lice naturally
• Removing manure buildup regularly to reduce fly pressure

Predator Awareness

Summer means longer days and more time in the run — but also more predator activity. Hawks are especially active in summer. Make sure your run has overhead protection (hardware cloth or netting) and check your perimeter fencing regularly.

The Bottom Line

Summer flock management comes down to three things: water, shade, and airflow. Get those right and your hens will handle the heat better than you'd expect. Check back for our Fall Flock Care guide as the season changes.