Flight calls. I love 'em. Initially I thought the flight calls I was recording were mostly Parakeet types (1ii) but I now find myself thinking that most are British types (1i). Have a go on this one. It looks pretty different to the very clear Parakeet ones I recorded last month. Like those it has a strong downward element but the initial element is less 'up and down'. Listening to the recordings, the calls sound quite like the Parakeets I recorded last month, but seem a bit shorter and more clipped to me. So I guess these could be British 1A but I'm not totally sure. The sonograms seem to show a shape somewhat intermediate between British and Parakeet.