| SALIM | Indian ornithologist and naturalist (First name) |
| PLOT | Robert --, naturalist, first keeper of the Ashmolean Museum (4) |
| BITTERN | Resentful naturalist's first bird (7) |
| PETERSON | Naturalist, ornithologist and artist who wrote the first modern field guides (8) |
| BOND | Ornithologist and author of Birds of the West Indies whose name was appropriated by novelist and keen birdwatcher Ian Lancaster Fleming for his iconic fictional secret agent code-numbered 007 (4) |
| AUDUBON | John James -, US ornithologist and artist |
| ODDIE | Bill, British ornithologist and TV presenter (5) |
| RUSKIN | Portrayed by David Suchet in Effie Gray, the art critic, ornithologist and watercolourist who wrote the fivevolume work Modern Painters (6) |
| BINOCULARS | Optical device used by birders, ornithologists and twitchers (10) |
| RAFFLES | With an ant, butterfly fish, horse race, woodpecker and the world's largest flower named after him, a statesman and naturalist who founded Singapore, the Zoological Society of London and London Zoo (7 |
| SIR | Artist, yachtsman and naturalist, a founder of the Wildfowl and Wetlands Trust and the World Wide Fund for Nature (3,5,5) |
| PETER | Artist, yachtsman and naturalist, a founder of the Wildfowl and Wetlands Trust and the World Wide Fund for Nature (3,5,5) |
| SCOTT | Artist, yachtsman and naturalist, a founder of the Wildfowl and Wetlands Trust and the World Wide Fund for Nature (3,5,5) |
| CHARLESLESLIEBARRETT | Which Australian journalist and naturalist wrote over 60 books on flora, fauna and landscape under t |
| CUVIER | French zoologist and naturalist who founded the sciences of palaeontology and comparative anatomy (6) |
| SLOANE | Hans, Anglo-Irish physician and naturalist whose collection founded the British Museum and after whom a London square is named (6) |
| ATTENBOROUGH | David - - -, broadcaster and naturalist who was knighted in 1985 (12) |
| HAECKEL | Ernst ___, 19th-century German zoologist and naturalist (7) |
| BEWICK | With a species of swan named after him, the wood engraver and naturalist who penned A History of British Birds (6) |
| BANKS | Joseph ?, British explorer and naturalist elected president of the Royal Society in 1778 (5) |