THIS is one angry mum you don’t want to mess with.
The peregrine falcon was caught on webcam as she showed an aggressive display to prove she rules the roost at Chichester Cathedral.
In a battle over territory, other falcons have been trying to get into the nest – but this mum-to-be was having none of it.
She and her partner are incubating four eggs, which are expected to hatch later this week.
Pete Harrison, from the RSPB, said: ‘One invader tried his luck when the female was alone in the nest.
She was looking around nervously as she sat on the eggs and bristling with her feathers puffed up. Then, the intruder flew right into the nest site and tried to approach her.
‘She attacked him and he flew off. That tactic might have saved him from further assault.’