Barnswallow nest update: day five of construction... I've been watching these cuties up close for at least a decade now, and this couple is doing something unprecedented (to me). The form of the nest is typical; but the choice of long grasses is something I've never seen before. Typically, they will make very tidy constructions, with each mouful of mud containing a short bit of grass; but this couple is making a shaggy nest, with long blades of grass sticking out everywhere. Why are they doing this??