Fody breeding plumage are usually colourful with bright red or yellow on the head and sometimes elsewhere. Non-breeding males and females are dull, sparrow-like birds with mostly grey-brown plumage. Fodies are typically found in forest, woodland or scrubland but some also occur in man-made habitats, especially the red fody. Some species feed mainly on seeds while others are largely insectivorous. Fodies build a dome-shaped nest of grass and other plant material. It has a side-opening and it is suspended from a branch or palm leaf. The genus was introduced by the German naturalist Ludwig Reichenbach in 1850. The type species was
Réunion fody were bright red. Back and tail were brown. The belly was pale. The head of the females and the juvenile males was brown. Neck and wings were red. The throat was pale brown. The Réunion fody was once described as abundant and as pest that destroyed entire crops. It was last seen shortly after 1672. The reason for its extinction might be the predation by rats. A type of fody on Réunion was previously mentioned as "Foudia bruante" by Philipp Ludwig Statius Müller in the work "Planches Enluminées" in 1776. But after a hypothesis by Cheke and Hume "Foudia bruante"