Sky Hunter was a ten-part educational BBC Look and Read production, which was first aired on the BBC in 1978.
It was re-worked in 1992 as Sky Hunter II, with the main cast providing the narration and educational sections.
Three children are on a canal boat holiday on the Regent's Canal in London.
They spot a peregrine falcon and two daft crooks who are trying to nab it.
It is up to the children to help stop the illegal theft and trading of birds in the area.