Ultimate skywatching

Took part in the first Tower 42 Bird Study Group migration watch in London today. Conditions were far from ideal with north-westerly winds, rain and poor visibility, which meant there was nothing in the way of visible migration going on. The breathtaking views across central London from the roof went a long way towards making up for the lack of birds (photos below), but I can't wait to get back up there in better weather to see what passes over (or under).

For more on today see Peter Alfrey's Birding Notebook and the Tower 42 Bird Study Group blog.