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  4. Chew cards

Chew cards

Chew cards are a great way to work out the best location for your backyard trap. This is especially helpful when you first start out trapping or if your trap hasn’t caught anything for a while.

Installing chew cards

Start by placing the cards in areas where you suspect rat activity, eg. near compost or rubbish bins. Nailing it to a nearby tree or fence (at a height of 50mm-100mm) will help keep it secure. We suggest leaving it out for around 5-7 nights.


Identifying bitemarks

Use the images below to identify which predator the chews belong to.

Rats

  • Rats typically remove large parts or all of the baited portions of the card

Extra for experts: How to differentiate between an adult and a juvenile rat chew

Adult rat chews:

Juveline rat chews:

Mice

  • Mouse chews are usually between the channels on one surface of the card

Other predators

In this section

Get Involved

  • Find a group
  • Suburb boundary map
  • Community map
  • Resources
    • Get trapping!
    • How to build a trapping tunnel
    • How to build a corflute tunnel
    • How to run a tunnel building workshop
    • How to rat proof your compost
    • How to maintain your Victor rat trap
    • How to make a budget weta hotel
    • Chew cards
    • What's the difference between the eradication project and community backyard trapping?
    • Predator Free Wellington's Kupu Māori & NZSL
    • GUIDE: How to kill rats and engage a community
    • WEBINAR: Expert trapping tips with Cam Speedy (PFNZ Trust)
    • Social-ecological research (2022)
  • Resources for schools
    • Predators & Predator Free 2050
    • Native Species (Momo Māori)
    • Trapping Guide
    • Monitoring Guide
    • Learning Resources & Activities
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  • Home
  • About
    • Why predator free?
    • Our supporters
    • Our team
  • Get Involved
    • Find a group
    • Suburb boundary map
    • Community map
    • Resources
      • Get trapping!
      • How to build a trapping tunnel
      • How to build a corflute tunnel
      • How to run a tunnel building workshop
      • How to rat proof your compost
      • How to maintain your Victor rat trap
      • How to make a budget weta hotel
      • Chew cards
      • What's the difference between the eradication project and community backyard trapping?
      • Predator Free Wellington's Kupu Māori & NZSL
      • GUIDE: How to kill rats and engage a community
      • WEBINAR: Expert trapping tips with Cam Speedy (PFNZ Trust)
      • Social-ecological research (2022)
    • Resources for schools
      • Predators & Predator Free 2050
      • Native Species (Momo Māori)
      • Trapping Guide
      • Monitoring Guide
      • Learning Resources & Activities
  • Miramar
  • Island Bay to CBD
    • Phase 2 Buffer Project
  • News
  • Contact