Emu The pelvic limb muscles of emus contribute a similar proportion of the total body mass as do the flight muscles of flying birds. When walking, the emu takes strides of about , but at full gallop, a stride can be as long as . Its legs are devoid of feathers and underneath its feet are thick, cushioned pads. Like the cassowary, the emu has sharp claws on its toes which are its major defensive attribute, and are used in combat to inflict wounds on opponents by kicking. The toe and claw total in length. The bill is quite small, measuring
The Birds of Australia (Mathews) London over a 17-year period from 1910 to 1927. The text and plates, comprising 12 volumes, were issued serially in 75 parts in royal quarto format in an edition of 225 numbered copies. The five supplements issued at various times during the long publication period fill a 13th, supplementary, volume; the first three supplements comprising the "Check-List of Australian Birds", and the last two the "Bibliography of the Birds of Australia". When the publication was complete it was reviewed in the RAOU journal "The Emu" by J. A. Leach (as J.A.L.) who wrote: "In these twelve splendid volumes, Mr Mathews