Teams of volunteers who regularly clear predator traps in the Makarora Valley to protect nesting mohua (yellowheads) are reporting catching unprecedented numbers of rats.
Every fortnight since August Jane Forsyth and Ian Turnbull have been clearing and re-setting traps along one of the seven Forest & Bird trap lines betweenHaast Pass and the Makarora Tourist Centre.
They have been volunteering since 2014 and said this was the worst year for rats they had ever seen.
Over the past month, they had caught 185 rats, 50 mice and five stoats.
In September, they caught 177 rats and 10 possums.
"It must be a moving carpet of rats out there on the forest floor," Forsyth said.
Forest and Bird volunteer John Langley with a stoat at Pipson Creek, Makarora. Photo / Ian Turnbull
A plague of rats was expected following the mega beech mast this past summer and autumn which has left a huge amount of seeds on the ground, but Forsyth said trapping could only do so much.
"I think we are just holding the line with the trapping, but it is big 1080 drops that make a difference.
