Sutton Park Nature Reserve - Advise required.

Hi,

I work for the local water authority and we wish to carry out some work on our assets within Sutton Park, these are located on the far west side of the park, following a pre site visit with the local parks rangers it was mentioned that one of our assets is located within a schedule 1 bird species area and previously has been home for Dartford Warbler's. I am looking to know of any known sightings of birds in this area with rough locations so we can ensure our works do not interfere with the birds habitats. Any advise or pointers to people/sites who may be able to provide any information or support would be much appreciated.

Regards

James