But two things puzzle me. One is that every pigeon seems to be differently marked, and this isn't true of most birds. The other is their sound. The normal call goes a bit like this: "Oh, I am so cool; oh, I am so cool". But nowadays, it seems they're too exhausted to finish the sentence, so they finish with either: "Oh, I am so -" (abrupt halt), or sometimes just "Oh-"
This is maddening, as I keep waiting for the bit that doesn't come. Is there an explanation for this (GB??)?