Snapped at The National Zoo:
Fatherhood: Female emus leave egg-care and chick-rearing to the males. Males keep ground nests where they tend about ten dark-green egs - rarely leaving during the eight-week incubation period. Chicks stay with their father for half a year or more.Sounds about right.Behavior: Displaying females make a deep, resonating call to attract males; males make a grunting sound.
There's a newish Eric Carle book about this -- dads doing the work in the animal kingdom. There's no mention of emus since it's about fishies and other watercreatures. :) Good for you to point this out.