Benjamin Smith Barton,
Transactions of the Linnean Society of London
(1818)
“ The tail is very short, and the middle feather the longest: the others on each side shorten gradually, and are of the colour of the rest of the bird, only somewhat darker: the two shortest or outermost feathers arc perfectly white, which the bird has a faculty of flirting out on either side as quick as a flash of lightning, especially when he hears or sees any thing that disturbs him, uttering at the same instant an extreme harsh and loud shriek. ”
