Hi Hal_Chase,
green poo in hedgehogs is usually a sign of stomach upset or illness. Healthy Hedgehog poo typically goes black as it hardens.
what were you feeding them before they disappeared? perhaps someone else was feeding them and putting the wrong things out for them to eat (bread and milk perhaps – eek!). As ground scroungers they pick up all sorts of things they shouldn’t as well – possibly even poison that has been put down for ‘pests’ or slug pellets? Its not a good time for them to get stomach upsets as they are trying to fatten up before hibernation and would put them at risk.
suggest continuing with some good quality hog friendly food and water and see if they reappear. If the green poo reappears you might need to get them checked out by a local rescue / carer (vets have limited knowledge on hog care usually)
