Predators might be stealthy but they often leave behind uneaten remains of their bird, egg, small mammal, reptile or insect victims. Likely killers can be identified from the type of prey, the way it was killed and eaten, and the location of the kill sign.
Please note that kill sign isn't the most clear-cut way to identify a predatory animal pest.
Narrow your search to specific types of Kill Sign:
Fur, feathers or scales (vertebrate)
Mouse kill: a bird killed by a mouse
Kiore: this Cook’s petrel was eaten by a kiore.
Ship rat eating a fantail chick it has just taken from the nest.
Norway rat feeding on a seabird carcass.
A possum eating a nestling.
Pig kill: remains of animal killed or scavenged by a pig.
Hedgehog eating a frog.
Cat kill: the remains of a kakapo killed by a cat.
Weasel kill: ...
Weka killed by a stoat.
Ferret killing a rabbit.
Insects or snails (invertebrate)
Mouse-chewed snail shell or other invertebrate kill sign
Kiore-chewed snail shell or other invertebrate kill sign.
Ship rat-predated remains of snail shells and insects.
Norway rat feeding station containing shell fragments.