Bunhill: Wagtails in the works

Much feathering of nests at the giant petrochemical complex at Grangemouth, where BOC has been unable to use one of its five huge liquid nitrogen storage tanks on the site because two pied wagtails moved in while the tank was undergoing repairs.

They promptly laid five eggs and the tank will now have to remain shut down until the chicks leave.

Next door at the BP refinery, two peregrine falcons are nesting on an 80ft tower. Bunhill thinks we should be told: do peregrine falcons hunt wagtail chicks?