It spent of its time doing this. But after a while it popped out and flew into a neighbouring tree.
I'm working in Sde Boker this week. It was really good to catch up with Darren Burns et al. who were busy ringing an impressive number of migrants - Lesser Whitethroats, Blackcaps, Nightingales, Barred Warbler, Wryneck and others. Migration is finally catching up . . . .