I know my chickens have worms... I saw two in one of my hen's poo this morning but stupidly did not take the poo sample or take a picture because I did not know that many medications are specific to certain worms. So, I need to take a poo sample to the vet BUT ... do the worms have to be present in the poo? Because I have been following my 3 around for an hour and every poo they leave has no sign of worms in it. But I know at least one of them has them! I don't want to go to the vet and spend money just for them to tell me that there aren't any worms... when I know very well that there is. Just not sure what kind. Please help! I need to know ASAP. Thank you.