As the term "Flying Rainbow" bird has already been taken, (it refers to the Rainbow Lorikeet), I thought perhaps "Flying Prism" bird might be an apt description for the White-Faced Ibis.
It may look entirely black from certain perspectives, but looks can be deceiving. And although it is continually pursued by Red-Winged Blackbirds, perceiving it to be a bird of prey that will feed upon their eggs & young, again it is a case of mistaken identity.
The White-Faced Ibis's diet consists mainly of insects, snails, crayfish & small fish. Birds' eggs do not appear to be on the menu. Perhaps it's that "vulture pose" as it comes in for landings that have led blackbirds, etc. astray.
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