Nocturnality Like other elephant birds and its
kiwi relatives,
Mullerornis probably was nocturnal based on the small size of its optic lobes, though it shows less optical lobe reduction than these other taxa, implying slightly more
crepuscular habits.
Diet Isotopic evidence suggests that
Mullerornis was likely a
browsing herbivore.
Reproduction The eggs of
Mullerornis are substantially smaller than those of
Aepyornis, weighting approximately , with a shell thickness of about . ==Footnotes==