Biology

Nests are built with leaves, finely shredded grass and feathers, with feathers being laid most thickly on the bottom of the nest, creating a comfortable cushion for the chicks. The reproductive biology of this bird is poorly understood, but pairs are known to breed between October and February, and both parents are thought to care for and feed the growing chicks (2). The South Island wren is primarily insectivorous, feeding on creatures such as moths, grasshoppers, spiders and worms, but will also occasionally take fruits and seeds from alpine vegetation (2) (3).