joannec
Well-known member
This afternoon I watched over 500, mostly swallows but probably some other hirundines too, pass overhead in East Sussex. They were flying high, which made it hard to tell if they were all swallows. There could have been swifts among them too. They were moving south. Seeing this spectacle made me wonder if it is usual for the various hirundines to migrate in mixed flocks. Also will some of these birds be leaving Britain now, it's still August, or will they hang around Sussex for a few more weeks before finally going?