Sylviornis neocaledoniae

Overview

Sylviornis neocaledoniae was a large, flightless bird from islands in the South Pacific. Its large head, heavy body, and short legs are striking. Many fossil bones together revealed the body of this unfamiliar island bird.^[1]

Key facts

Could this bird have built the large earthen mounds left on the islands? Researchers compared its foot bones with those of living birds skilled at digging. A 2016 study interpreted its feet as unlikely to have been specialized for building large mounds.^[1]

Time and place

It is known from the late Holocene of present-day New Caledonia. The Holocene began about 12,000 years ago, and this bird is associated with island ecosystems several thousand years ago within that interval. Material from Grande Terre and the Isle of Pines has been studied.^[1]

The time range describes source context, not the complete duration of this species.

Size, form and skeleton

A 2016 study reconstructed a resting height of approximately 80 cm and a body mass of about 27–34 kg. It had a large head and heavy body, with short, sturdy legs and toes. Reduced wing bones also relate to its flightless body.^[1]

Habitat and reproduction

This was the body of a ground-dwelling island bird. The shapes of its short, sturdy toes and claws were studied in relation to digging ability. Comparisons with the feet of related birds explored whether it used large earthen mounds for breeding.^[1]

Fossil discovery

Approximately 600 bones collected from a cave on the Pindai Peninsula in July 2003 formed the basis of a 2016 study. Measurements from several individuals were combined to reconstruct the body and compare it with living birds. Many partial bones together helped reveal a giant island bird.^[1]

References

1. Worthy et al. (2016) · Osteology Supports a Stem-Galliform Affinity for the Giant Extinct Flightless Bird Sylviornis neocaledoniae (Sylviornithidae, Galloanseres)
2. Natural History Museum — What the dodo really looked like

Research questions

Where does this large bird belong among the galliform birds? A 2016 analysis interpreted it as a stem lineage that diverged before living galliforms. Comparisons of its large head, small wings, and leg bones explore the relationships and life of this island bird.^[1]

Observation

Move your gaze from the large head to the heavy trunk, small wings, and short, sturdy legs. Examining the toes and claws further reveals the body of a ground-dwelling bird.^[1]