" It was a little like a pikka bird, only rather smaller. That is to say, in fact it was larger, or to be more exact, precisely the same size or, at least, not less than twice the size. It was also both a lot bluer and a lot pinker than pikka birds, while at the same time being perfectly black. "

― Douglas Adams , The Ultimate Hitchhiker's Guide to the Galaxy (Hitchhiker's Guide to the Galaxy, #1-5)