At a PechaKucha (which seems to be Japanese for "Ignite"; i.e., a set of short presentations backed by slides on a timer) in Christchurch, Mike Dickinson, a zoologist specialising in mostly extinct flightless birds, speculates on the question of
what exactly is Big Bird? (Spoiler:
Grandicrocavis viasesamensis appears to be the flightless relative of a type of crane.)