4Common Ostrich — country/territory distribution (BirdLife DataZone data)SRC-364
5Common Ostrich Struthio camelus — species factsheet text (BirdLife DataZone data; public page https://datazone.birdlife.org/species/factsheet/common-ostrich-struthio-camelus)SRC-363
6OSME Region List of Bird Taxa, v10.1, Part A: Non-PasserinesSRC-366
7Robinson & Matthee 1999 — Molecular genetic relationships of the extinct Arabian ostrichSRC-065
