6 Pack Of Zoo Med Can O' Jumbo Size Grasshoppers, 1.2 Ounces, Reptile Bird and Fish Food. Zoo Med Jumbo Can O' Grasshoppers Reptile & Bird Food is the latest in reptile nutrition and convenience. Feeder insects are cooked in the can to lock in flavor and freshness. This process also softens the exoskeleton for easier digestion. These jumbo-size grasshoppers are ideal for large monitors, tegus, skinks, turtles and birds. Every can is filled with about 20 wingless, extra-large grasshoppers.