Effectively kills all intestinal worms including Thread Worm (Capillaria spp.) Tapeworm (Raillietina spp, Choanotaenia spp.), Roundworm (Ascaridia spp.), Caecal Worm (Heterakis gallinarum), Hook Worm (Acuaria spp.) in caged and aviary birds and pigeons. Completely safe and can be mixed with a small amount of orange juice for fussy drinkers.