bird, in zoology. See **Natural History**.
**Avis artica**. See **Larus**.
**Avis nivis**. See **Loxia**.
**Avis paradisi**. See **Muscicapae**.
**Avis pollygletta**. See **Turdus**.
**Avis rabo**. See **Pelicanus**.
**Avis rabos**. See **Phaeton**.
**Avis venti**. See **Margus**.
Avis is also the name of an order of knighthood in Portugal, instituted by Sancho the first king, in imitation of the order of Alcantara, whose great cross they wear.