A genus of ASTROVIRIDAE infecting avian species and often involving extra-intestinal manifestations. The type species is Turkey astrovirus.

Synonyms: Chicken astrovirus, nephritis virus, Avian, txid70793, Avian nephritis viruses, txid1354735, Avastroviruses, astrovirus, Turkey, Turkey astroviruses, txid249589, txid336959, Avastrovirus, Avian nephritis virus, Turkey astrovirus, astrovirus, Chicken, Chicken astroviruses