"I grew up in Camberley, a Victorian town on the A30 in Surrey. It was made of pine forests, golf courses, elderly army officers with parade ground voices, Conservative clubs and tea dances. In 1975 my parents had bought a little white house in Tekels Park, a private estate near the town centre. It was owned by the Theosophical Society. My parents were journalists and knew nothing of theosophy, but they loved the Park, and I did too. No place has so indelibly shaped my writing life".[4]
Macdonald read English at New Hall, Cambridge (now Murray Edwards College) from 1989 to 1992.[5][6] They then worked in falcon research in Wales and the Gulf States.
Macdonald has written and narrated several radio programmes, and appeared on television in the BBC Four documentary series, Birds Britannia, in 2010.[9] Their books include Shaler's Fish (2001), Falcon (2006), H is for Hawk (2014), and Vesper Flights (2020). Macdonald received critical acclaim for H is for Hawk, including the 2014 Samuel Johnson Prize for non-fiction and the Costa Book Award.[10] The book—which also became a Sunday Times best-seller—describes the year Macdonald spent after the death of their father training a Eurasian goshawk named Mabel, and includes biographical material about the naturalist and writer T. H. White.[11]
Macdonald also helped make the film 10 X Murmuration with filmmaker Sarah Wood as part of a 2015 exhibition at the Brighton Festival.[12] In H is for Hawk: A New Chapter, part of BBC's Natural World series in 2017, they trained a new goshawk chick.[13]
Macdonald presented the BBC Four documentary, The Hidden Wilds of the Motorway, in 2020.[14] That same year saw the publication of a fourth book, Vesper Flights, a collection of essays about "the human relationship to the natural world".[3] In 2023, with Sinistra Blaché, they published a novel, Prophet.[15][16][17][18]
Macdonald lives in Hawkedon, Suffolk. Their goshawk, Mabel, died of aspergillosis in 2014.[22] They resided with a parrot, Birdoole, who died in 2021.[22]