In 1972, Parks's travels to the West Indies inspired his second solo album, "Discover America", a tribute to the islands of Trinidad and Tobago and to calypso music. Parks re-arranged and re-produced obscure songs and calypso classics. Parks also produced the album "Esso" for the Esso Trinidad Steel Band in 1971. It was cultivated as a tribute to Prince Bernhard, the head of the World Wildlife Fund at the time. According to Parks, "Everything was directed to making it a proper, political, green album." This direction was continued in the 1975 release "Clang of the Yankee Reaper".