Earlier this week I was learning about a technique called ‘dynamic light scattering’ (DLS) which is used to determine the size of very small particles, even those as small as protein molecules. My teacher was a scientist called Ken who designs and builds DLS machines. It came up in conversation that he lives close to the southern end of the M40 corridor where I’ve seen lots of red kites and read stories of them stealing food from people, so I asked if he sees them in his neighbourhood.
Red kites are big, distinctive, birds of prey and they’re a conservation success story in the UK, having been almost driven to extinction but then reintroduced in the 1990′s since when their numbers have rocketed. And as it happens they are very common indeed in that part of the world and Ken kindly agreed to upload this video clip to You Tube so I could post a link to it here. This all happened in Ken’s garden and I think it’s highly entertaining stuff, I think I’d struggle every morning to get out the front door to go to work if I had this kind of show going on in my garden!
Later on, at the end of the same day, a big flock of a few thousand starlings were murmurating over the Cambridge Science Park as I left work to come home. I was keeping one eye on the starlings and one eye on the road when I stopped at a red traffic light on the edge of the Science Park and the starlings were swirling and wheeling around the sky just in front of me. Then a sparrowhawk drifted by but the starlings carried on murmurating until the hawk suddenly accelerated up towards them. Then all of the flocks shrunk down into very tight groups and focussed on taking evasive action. It was a piece of natural theatre going on in the sky which was spectacular to watch. Then the traffic lights went green and I had to move on so I didn’t get to see the culmination of the chase, but it was a captivating end to the day.