The Company shall–
(a)when carrying out any piling operations which are required for the construction of Works Nos. 1 to 5, use their reasonable endeavours to avoid disturbance to nesting birds which habituate any part of the limits of deviation; and
(b)secure that when the authorised works have been constructed, a reasonably sufficient number of nesting boxes for black guillemots shall be located conveniently for those guillemots on structures within the port limits.