This is what woke me up this morning.
Tap. Tap tap. Tap. Thud. Tap.
I couldn't work out what it was, so was forced to get up and investigate. And there was the culprit. A male Chaffinch trying to attack his reflection.
The sustained assault on our window continued until we left for work, with only brief pauses to sing.
On our return this evening, our neighbour came out and said 'We've got a suicide bird!' and described perfectly the antisocial activities of the Chaffinch. The evidence of his continued activity was all too clear, along the windowsill, and high up on the panes were dozens of scuffs. As far as I know, Chaffinch beaks do not have the same glass-cutting properties as diamonds, so they should wipe off.
We put a bit of clingfilm on the outside of the window, to break up the reflection.
I expect he'll be back tomorrow morning, bright and early...
photos taken with Canon EOS 30D, EF 300mm f/4L IS USM