The Mauritius fody (Foudia rubra) is a rare species of bird in the weaver family. It is endemic to the island of Mauritius. It is classified by BirdLife International as being endangered. Photo from Wikpedia.
They are confined to the south-west interior of Mauritiusin the Black River Gorges National Park. They can be easily confused with the Madagascar Fody, I wish I had know that when I was there! I just assumed all the cute little red and brown birds were the Mauritius one but they were probably Madagascar Fodies.