Autumn roost

Arriving at work this morning (8am), there was a a huge amount of twitter around the office buidling and beyond.  Thre was a flock of at least 350+ swallows and house martins feeding in fields to the west of the site.  This is the largest concentration of hirundines that I have seen around the office.  It would suggest that they roosted close by in near-by willows on the Wooler Water or around the margins of a large pond to the south west.

A nuthatch also appeared.  This is a new bird for the office list!