Avian pallium

In the neuroanatomy of animals, an avian pallium is the dorsal telencephalon of a bird's brain.

The pallium of avian species tends to be relatively large, comprising ~75% of the telencephalic volume.

Birds have a unique pallial structure known as the hyperpallium, once called the hyperstriatum.

Evidence suggests the avian pallium's neuroarchitecture to be reminiscent of the mammalian cerebral cortex.

[1] The avian pallium has also been suggested to be an equivalent neural basis for consciousness.