Megapode
The megapodes, also known as incubator birds or mound-builders, are stocky, medium-large chicken-like birds with small heads and large feet. They are included in the family of Megapodidae. They may build a pile of rotting vegetables as an incubator for their eggs.
Megapodiidae | |
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Alectura lathami | |
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Family: | Megapodiidae Lesson, 1831
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Megapode Media
This cross-section of a megapode mound shows a layer of sand (up to 1 m thick) used for insulation, an egg chamber, and a layer of rotting compost. The egg chamber is kept at a constant 33°C by opening and closing air vents in the insulation layer, while heat comes from the compost below.