Metalbird - Tui
Tui are considered to be very intelligent, much like parrots or at least the smart ones. They also resemble parrots in their ability to clearly imitate human speech, and were reputedly trained by Maori to replicate complex speech (most likely humorous jibes in Maori).Tui are also known for their noisy, unusual calls, different for each individual, that combine bellbird-like notes with clicks, cackles, timber-like creaks and groans, and heavy smoker like wheezing sounds. The secret of these spectacular song birds is their two voice boxes that enable them to perform such a myriad of insane vocalisations.
Some of the huge range of Tui sounds are beyond the human register. Watching a Tui sing, one can observe gaps in the sound when the beak is agape and throat tufts are throbbing. Don't worry, other birds and dogs will be enjoying those parts. They tell me that Tui will also sing at night, especially around the full moon period, although we've yet to hear one such night call and so are a little dubious.
Our version of this much lauded bird is a life like 260 mm long in 3mm Corten steel. It's easily hammered into most wooden structures and will rust to a deep brown.