A pregnant cane toad has appeared in the Sydney Hills district, a sign the poisonous pests are making their way south.

The half-a-kilo amphibian showed up on a farm in Kenthurst, about 40 kilometres north-west of the CBD earlier this week.

Rev. Bill Crews speaks to Watergum-Brisbane Cane Toad program manager Emily Vincent about the cane toad population slowly creeping south from Queensland.

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