How will I know if my chickens have worms?

Intestinal worm eggs are found in the grass in wild bird droppings, they are then eaten by our free ranging chickens, where the eggs start to hatch and populate their intestines. Signs of worms can include: diarrhoea, weight loss, lack of egg production and physical worms in their poop. If your flock have Gapeworm you may notice your chickens continuously stretching their necks.