Diamond conducts field research on the behavior of wild parrots. Her current book, Thinking Like a Parrot: Perspectives from the Wild, is being published by the University of Chicago Press.
She is co-author of the UC Press book, Kea, Bird of Paradox: The Evolution and Behavior of a New Zealand Parrot, and the Harvard University Press book, Concealing Coloration in Animals. She authored several notable books, including the Practical Evaluation Guide, Tools for Museums, now in its third edition.
Diamond also led the NIH-funded World of Viruses outreach project, the NSF-funded Explore Evolution project with exhibit galleries at six museums, and the NSF- and HHMI-funded award-winning Wonderwise, Women in Science Series. She served on the board of directors of the Friends of the Earth, the Charles Darwin Foundation (Galapagos), and the American Alliance of Museums.