Rat identification in New Zealand

How to differentiate, from photos, the three species of rat found in New Zealand. Based on descriptions at https://www.stat.auckland.ac.nz/~smiller/rat_id.

All 3

Taxonomy

Brown Rat ¹
Rattus norvegicus

Black Rat ²
Rattus rattus

Polynesian Rat ³
Rattus exulans

Edited by Tony Wills, some rights reserved (CC BY-SA)

Photo Credits

1. (c) Ouwesok, some rights reserved (CC BY-NC)
2. (c) Ryanwebb, some rights reserved (CC BY-NC), uploaded by Ryanwebb
3. (c) Cclborneo, all rights reserved, uploaded by Cclborneo

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