 In 1958 Falkus married Kathleen Armstrong, daughter of a local farming family.He lived with her at Cragg Cottage, Eskdale, for most of the rest of his life, writing about fishing and natural history and making television films on related subjects.He wrote, produced and presented a series of "The World About Us" films for the BBC, and with the Nobel Prize-winning zoologist Professor Niko Tinbergen he made a film about gull behaviour called "Signals for Survival" which won the Italia prize in 1969, and first prize for the BBC at the 1969 Montreux Film Festival.