The psychological reaction to emotional trauma now has an established name: post-traumatic stress disorder, or PTSD.
The work was premiered on 30 December 1846 by the at the.
We now know that a traumatic event can leave psychological symptoms long after any physical injuries have healed.
Contemporary accounts indicate that individual bird plumage was white, blue, or mixed blue-and-white.
It is thought to have been most similar to the.
It was probably either flightless or a poor flier; this and its docility made the bird easy prey for visiting humans, who killed it with sticks.