English: Screenshot from an episode of Zoo Parade, an American television program broadcast from 1950 to 1957 that featured animals from the Lincoln Park Zoo in Chicago. The show was broadcast on Sunday afternoons on NBC. In this image, host Marlin Perkins (at left) feeds a macaw.
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Uploaded a work by NBC from Zoo Parade (television series) episode #190 from 1954 -- screenshot taken from a public domain copy of the program online at https://archive.org/details/Zoo_Parade_190 with UploadWizard