When our trees "mast", they produce heavy flowering and seeding - providing lots of food for native wildlife, but also bringing out a LOT of rodents along with it.
This year's seed mast is likely to be one of the biggest in the last 45 years and Forest and Bird is worried the influx of predators could have a severe effect on some of our native species.
Its chief conservation advisor Kevin Hackwell joins us to explain what they have to do, and what they need to do it.
Photo: AFP
