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New Caledonian crow

Corvus moneduloides

It makes hooked tools from twigs and wire. Its neurons haven't been counted.

Neurons

No published count

Evidence

• It makes hooked tools.
  Weir AAS, Chappell J, Kacelnik A (2002) Shaping of hooks in New Caledonian crows. Science 297(5583):981. doi:10.1126/science.1073433.

The New York Declaration on Animal Consciousness (2024) finds strong scientific support for conscious experience in mammals and birds.

Assess it against the published criteria