http://easternfederation.tripod.com/

http://nca.mysite.wanadoo-members.co.uk

http://www.britishbirdcouncil.com/

http://www.defra.gov.uk

http://www.birdlinks.co.uk

http://www.birdtrek.co.uk/

http://www.ff3.co.uk

http://www.bbi-aviculture.co.uk

http://www.birdsofbritain.co.uk