Saddle-billed Storks are large, charismatic birds that are rare in captivity. The Dallas Zoo was the first zoo to successfully hatch a live chick and was then able to aid other zoos to have similar successes with their birds. Over the past five years, reproductive success has decreased dramatically throughout the SSP population. To rule out possible nutritional factors, this study has been initiated to evaluate the vitamin and mineral blood levels in the captive population.