Given a reference text about the Mauritius fody, tell me what they look like.

Context: The Mauritius fody 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. It is also on the United States' Endangered Species List with an endangered status.

This bird is 14 centimeters long. Breeding males are olive brown with a red head, breast and rump patch and black lores. While females, non-breeding males and juveniles are olive brown with white wing bars and a brown bill.

The bird lives in several types of forest, including degraded areas, as well as plantations. Stands of Japanese cedar have replaced native vegetation and now provide protection against predators. It feeds on insects like grasshoppers, beetle larvae, caterpillars, and also spiders. Berries are eaten regularly by some individuals. It feeds on nectar regularly, using its specialised brush-tipped tongue.

The bird is a weaver, the male and female cooperating to weave each nest, from material like grass, moss and small twigs.

Answer: Male and female Mauritius fody birds have different appearances. Breeding males are olive brown with red heads, breast and rump patches, and black lores. Females and non-breeding males are olive brown with white wing bars and brown bills.