Marine Animals

Wild Guillemot Colony Welfare and Disturbance

Guillemots nest in dense colonies on cliff ledges and are highly vulnerable to disturbance events that cause egg loss and chick falls.

Key Facts

Guillemots incubate a single egg on bare cliff ledges in densely packed groups
Disturbance from boats, drones, and visitors causes mass flushing from ledges
Eggs and chicks are lost when birds flush from ledges in panic
Oil spills are a major catastrophic welfare event for guillemot colonies
UK guillemot populations are broadly healthy but locally affected by prey changes

Welfare Considerations

Guillemots flushing from ledges during disturbance lose eggs or chicks that fall to the sea. Even single disturbance events during sensitive incubation and chick periods cause measurable breeding failure in affected colonies. Boat and drone exclusion zones around seabird colonies are essential welfare protections.

What You Can Do

Maintain exclusion distances from seabird colonies during breeding season
Never use drones near seabird cliffs
Donate to seabird monitoring and protection organisations