Yes — chickens can eat apples, and most hens will mob you for them. The flesh is safe, hydrating and full of the natural sweetness and vitamins that make a welcome change from plain feed, and pecking at apple pieces keeps a flock busy and content. The one sensible precaution is the core: apple seeds contain amygdalin, a compound best kept out of a hen's diet, so core the fruit and leave the seeds and stalk behind before the apples go anywhere near the run.
How to serve apples to a flock
Core and chop apples into hen-sized chunks, or halve them and let the birds peck the flesh out themselves; grated apple scattered on the ground gives timid hens a chance too. Wash orchard or shop-bought fruit first, and use windfalls only if they are fresh — soft, fermented or mouldy fruit goes on the compost heap, not in the run. Introduce any new treat in a small amount first and check the droppings the next day for looseness. Chilled apple pieces make a cooling summer occupation, while a whole cored apple hung at head height gives the flock something to work at together.
Where apples fit in the diet
A laying flock runs on its balanced layer feed, which supplies the protein and calcium that eggs are made from; treats of any kind, apples included, should stay a small sideline to that main ration so hens do not fill up on snacks and skimp on what they actually need. Think of apples the way you think of pudding — a little, sometimes, after the proper meal. Scratch grains, greens and fruit all draw on the same small treat allowance, so rotate what you offer across the week rather than serving everything daily. Hens with access to range will find fallen fruit on their own in fruit season; keeping the area under trees reasonably tidy stops that bonanza turning into a wasp-ridden feast.
When to hold back
Skip apples for hens that are unwell or off their feed until they are eating their ration properly again, and be cautious with very young chicks, whose crops and digestion are built for starter feed rather than fruit chunks. Apple in any squishy, spoiled state is the real hazard — moulds growing on rotting fruit can poison poultry, so if in doubt, throw it out. If a hen that has gorged on fallen fruit goes quiet, stops eating or develops a swollen, doughy-feeling crop, separate her, offer plain water and contact a vet with poultry experience if she does not pick up promptly.
Treats stay treats when the whole household follows the same rule, and KinsLe Care Teams let you assign the flock's feeding and treat duties to whoever is on chicken watch, with finished jobs marked off so apple day does not quietly become every day.