![4 Birds: Ostrich, rhea, cassowary and kiwi (related birds).](http://static.sciencelearn.org.nz/images/images/000/001/746/full/Ostrich-rhea-cassowary-and-kiwi20160824-15744-1in7o0h.jpg?1674166745)
The ostrich, rhea, cassowary and kiwi are all related birds that had a common ancestor in Gondwana. They are now distributed across New Zealand, South America, South Africa and Australia.
(Top left to right clockwise: Ostrich, rhea, kiwi and cassowary.)