You wanted more on related species...lets return to lovely wikipedia:
Megapode - Wikipedia
There is a description of behaviours and a list of the species. They are commonly known as "incubator birds" as they all bury their eggs as opposed to sitting on them, and they are all terrestrial.
It even mentions that it is likely that temperature determines sex, making the message by Arach concerning a throwback to crocs even more meaningful.
I mean, this is America. Everybody loves seeing lesbians go at it, as long as they are both hot and not in a monogamous, legally sanctioned relationship.
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