The breeding bird survey 2006 /
M. J. Raven, d. g. Noble & S. R. Baillie
- Thetford : British Trust for Ornithology, 2007
- 16, [i]p. : ill., maps ; 30 cm.
- Report / Breeding Bird Survey ; no. 12. BTO Research Report no; 471. .
Published by the British Trust for Ornithology, Joint Nature Conservation Committee and Royal Society for the Protection of Birds, July 2007.