Anomalopteryx didiformis (originally Dinornis didiformis Owen 1844, Rechenbach 1853) is the recently extinct bush moa of New Zealand. It was about the size of a turkey, and was the smallest known moa. Note the reduction of the antorbital fenestra to a vestige here and in the largest moa, Dinornis.

Dinornis maximus (Owen 1843; recently extinct; 3.6m tall) is the tallest bird that ever lived, the moa. Females were apparently distinct and larger than males. Long considered a ratite based on its resemblance to Struthio, the ostrich, here Dinornis nests between the hoatzin, Opisthocomus (see below) and parrots like Ara. Aptornis is a smaller relative. Feather color was similar to the hoatzin, but perhaps more hair-like in substance.

Owen R 1843. On the remains of Dinornis, an extinct gigantic struthious bird. Proceedings of the Zoological Society of London: 8–10, 144–146.

Rechenbach L 1853. Avium Systema Naturale.

wiki/Dinornis
wiki/Bush_moa