Hoatzin, [186], [241] f., [242];

habits, [242]

Hobby, [176], [177]

Hodgsonius, [516]

Hoefnagel, figure of Dodo, [330]

Holarctic, [16]

Homologous, meaning of, [5]

Homolopus, fossil, [465]

Homorus, [484], [485];

H. lophotes, [487]