National Zoological Park, zoo in Washington, D.C., that was established under the Smithsonian Institution by acts of the U.S. Congress in 1889 and 1890, when a site in the wooded valley of Rock Creek, a tributary of the Potomac River, was purchased. The Smithsonian was authorized to transfer to the
For the first time, Bird House keepers at Smithsonian’s National Zoo and Conservation Biology Institute in Washington, D.C., are celebrating the hatching of two critically endangered blue-billed curassows.