Born in 1929, at a croft in North Aywick on the island of Yell, he grew up by the sea; it is therefore hardly surprising that on one occasion his mother found not a teddy bear in the young Bobby's bed but a dead puffin. His old ex-whaler grandfather once had to explain to him that the cat he was worried about swimming in the sea was in fact his first otter. Years later, in the early 1980s, Bobby Tulloch helped the BBC cameraman Hugh Miles in the making of the wonderful documentary The Track of the Wild Otter, which was mostly filmed around Yell.
Yell is the second biggest of the 100 or so islands that make up the Shetland archipelago - it is low-lying, windswept, made of peat and covered in heather. For Bobby Tulloch, with his boat, it was a good central island from which to travel all round Shetland.
Tulloch left East Yell School at the age of 14 without any formal qualifications. He served his time as a baker at Mid Yell. As a young man he was never beaten in a sprint over 100 yards. He was a yachtsman, a volunteer coastguard (until a few years ago - when technological advances in communication and position-finding equipment became common - the coastguard service in Shetland depended to a large extent on local volunteers), and used his motorboat extensively to travel round Shetland in pursuit of wildlife. During National Service in the Army he was a staff sergeant in charge of a bakery in Hong Kong, and years later when a Chinese restaurant opened in Lerwick, Shetland's capital, he would order in Cantonese.
In 1964 he became Shetland's first full-time representative of the Royal Society for the Protection of Birds, and worked for them for the next 21 years. His first claim to ornithological fame was in finding Britain's first nesting snowy owls in 1967. When the late Eric Hosking, then the only full-time bird photographer in Britain, came to take stills for the 16mm film I was making for the RSPB on the snowy owls, Tulloch put up hides for us.
Shetland boasts a list of more than 420 birds and is especially well- known for its vast colonies of cliff-nesting sea birds - about a million of them: puffins, gannets, shags, guillemots, terns, fulmars, kittiwakes and several species of gulls. Shetland is also internationally well known as a landfall for tired migrant species blown off course by easterly winds off the North Sea, while the island of Fetlar is the best colony in Britain for the rare wading bird, the red-necked phalarope and the whimbrel.
Bobby Tulloch became a proficient, self-taught photographer of birds, otters, seals, whales, fish and flowers. His pictures illustrated many books. His Bobby Tulloch's Shetland (1988) also earned him the annual Shetland literary prize. An enthusiastic headmaster commented on the superb illustrations in the book but added that the text was even better. His other books included A Guide to Shetland's Birds (1970, with Fred Hunter), A Guide to Shetland's Breeding Birds (1992), Migrations: travels of a naturalist (1991) and the illustrations for The Flowering Plants and Ferns of the Shetland Islands (1987, by Walter Scott and Richard Palmer).
Tulloch did tours of slide shows of wildlife in Shetland round the country, and even filled the Royal Festival Hall, London, doing wonders for RSPB membership recruitment. The National Trust for Scotland often invited him to lecture on cruise ships which took him to places like Norway, Spitzbergen, Iceland and the Baltic as well as around the outlying islands offshore. Later, with the company Island Holidays, he found himself as far afield as Alaska and the Falkland Islands.
He was a member of the Sullom Voe oil terminal advisory group giving the industry advice and practical help on the monitoring of sea birds and mammals. He also took it on himself to publish annual reports of bird sightings in Shetland, long before the Shetland Bird Club (of which he was later President) formalised records in the early Seventies.
An accomplished writer of poetry, Bobby Tulloch often entertained at local concerts and weddings with hilarious songs of his own writing. Later in the evening he would join in with the band playing guitar, fiddle or accordion.
He was a widower and had no children. His expertise in the natural world, and his ease at communicating with people, gave him a wide circle of friends.
Robert John Tulloch, naturalist, photographer, writer and musician: born North Aywick, Shetland 4 January 1929; married; died Lerwick 21 May 1996.