"Nestor notabilis, the Kea of the south island of New Zealand, has olive-green plumage with blackish…
"Psittacus erithacus, the Grey Parrot, which ranges across Equatorial Africa, is ashy-grey, with black…
"Corvus corax, the Raven, are generally black with a purplish or greenish gloss, and frequently with…
"Prosthemadera novae zealandiae, the Tui, are black and white... two gular patches of curled white filamentary…