The Seychelles fody is a social bird that is often seen foraging in groups of ten or more. It feeds primarily on invertebrates, which are picked from vegetation or tree trunks, or grabbed in short aerial pursuits (2), but its strong, broad bill can also tackle a wide range of food including seeds, invertebrates, fruit, nectar, reptile eggs and fish discarded by seabirds (4) (5). It also feeds on bird eggs, particularly those of the Fairy tern. When the adult tern is distracted the fody tips the tern egg from its branch onto the ground to smash it and then eat it (5). In human-altered habitats, they have adapted to exploit a wide range of food sources such as discarded food, garbage, and also forage in non-native vegetation (4).
Breeding occurs mainly between May and September, and starts with the courtship. This consists of males and females continuously calling to each other in turn, and then the male landing near the female, followed by short chases and a wing-beating display. The pair, which will mate for life, establish a territory in which to build the nest, and will defend an area of 30-50 meters in radius around the nest (2) (4) (5). The untidy nest is built out of twigs, Casuarina needles and palms, woven together in a bulky domed shaped structure, and then lined with a softer material, such as the silky fibre from the fruit of the kapok tree. These nests are situated in trees, attached near the end of the branch, or to the underside of a palm leaf. Generally, the male constructs the nest, which can take up to two weeks, whilst it is the female that will incubate the clutch of one or two eggs for 14 days. The parents feed the chick whilst in the nest by bringing them large insects or regurgitating small insects. Even after fledging, the parents can continue to care for the young for up to four months (2).