Medal of Honor | Meritorious Service Medal (United States) | Meritorious Service Medal | Bronze Star Medal | National Defense Service Medal | Newbery Medal | Distinguished Service Medal | Air Medal | Brownlow Medal | Distinguished Service Medal (Army) | Defense Superior Service Medal | Presidential Medal of Freedom | National Medal of Science | Congressional Gold Medal | Caldecott Medal | Vietnam Service Medal | Commendation Medal | Distinguished Conduct Medal | medal | IRI Medal | Davy Medal | Queen's Police Medal | Military Medal | Medal | Vietnam Campaign Medal | Defense Distinguished Service Medal | Achievement Medal | King's Medal of Merit | Fields Medal | 125th Anniversary of the Confederation of Canada Medal |
For the book The Lost World of the Moa (2002) he and Richard Holdaway received the D. L. Serventy Medal from the Royal Australasian Ornithologists Union in 2003 for an outstanding published work about Australasian avifauna.