This document, produced by the RSPB, is a good reference text for bird survey and monitoring techniques, and includes methodologies for single species surveys (e.g. little ringed plover, black redstart and skylark).
This document is part of our Good Practice Guidance for birds, produced by Keith Ross and James Latham.
Reference: Gilbert, G., Gibbons, D.W., & Evans, J. (1998) Bird Monitoring Methods: A Manual of Techniques for UK Key Species.The Royal Society for the protection of Birds, Sandy, Bedfordshire, England.