has any of his work been published?
Yes, "A Century of Birds from the Himalaya Mountains".
John Gould
 Gould published these birds in "A Century of Birds from the Himalaya Mountains" (1830–1832). The text was by Nicholas Aylward Vigors and the illustrations were drawn and lithographed by Gould's wife Elizabeth Coxen Gould. 
where is rock parrot found? It is a species of grass parrot native to Australia. who described it? John Gould what does this bird feed on? seeds of several species of grass does any organization work on its conservation? Yes, Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). where did the person who described it was born? Lyme Regis
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John Gould [SEP] Research and works published
Gould's position brought him into contact with the country's leading naturalists. This meant that he was often the first to see new collections of birds given to the Zoological Society of London. In 1830 a collection of birds arrived from the Himalayas, many not previously described. Gould published these birds in "A Century of Birds from the Himalaya Mountains" (1830–1832). The text was by Nicholas Aylward Vigors and the illustrations were drawn and lithographed by Gould's wife Elizabeth Coxen Gould. Most of Gould's work were rough sketches on paper from which other artists created the lithographic plates. This work was followed by four more in the next seven years, including "Birds of Europe" in five volumes.