What are the signs and symptoms of worms in chickens?

Intestinal worm eggs are found in grass in wild bird droppings, they are then eaten by our free ranging chickens, where the worm 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 birds continuously stretching their necks.