Noble megapode Fiji. The bird’s flightlessness is evident in its large body size, the extreme reduction of pectoral girdle elements and the loss of a keel on the sternum. The size and proportions of the bill are unlike those of any living fowl and, with a depth of 28% of the length, extraordinarily deep compared to modern galliforms. Worthy speculates that it was used for cracking the hard seeds of large forest fruits; there are several tropical forest trees native to Fiji producing hard seeds that cannot be cracked by any living birds or bats in the islands. Noble megapode The noble
Megapode was thought to exhibit temperature-dependent sex determination, this was later proven false; temperature does, however, affect embryo mortality and resulting offspring sex ratios. The nonsocial nature of their incubation raises questions as to how the hatchlings come to recognise other members of their species, which is due to imprinting in other members of the order Galliformes. Research suggests an instinctive visual recognition of specific movement patterns is made by the individual species of megapode. Megapode chicks do not have an egg tooth; they use their powerful claws to break out of the egg, and then tunnel their way up to