The Boreal toad, a subspecies of the western toad, is found at higher elevations in the southern Rocky Mountains of Colorado. The species is declining in Colorado. A captive breeding program for these toads has been established by the Colorado Division of Wildlife and, although the species has reproduced successfully in captivity, results are inconsistent. CREW currently is working in partnership with the Colorado Division of Wildlife to establish protocols that are more consistently effective for breeding this species in captivity. Combinations of hibernation protocols and hormone injections are being tested to determine the most effective methods for inducing sperm and egg release and subsequent tadpole production. Some studies are designed to determine if toads will reproduce naturally (without hormones) following hibernation. Conversely, other studies are designed to determine if non-hibernated toads can reproduce successfully following hormonal treatments so that the stress of hibernation can be avoided. If numerous tadpoles are produced as a result of these studies, CREW animals will be considered for reintroduction back to Colorado.