Lincolnshire Bird Club
Provides photo galleries, a collection of articles on local bird populations, a forum, and links to blogs.
RSPB - Lincoln Local Group
Runs a programme of indoor and outdoor events for RSPB members and the public to promote conservation of birds and their habitats, and birdwatching. Includes news and contacts.
South Lincs RSPB Local Group
Supports bird watching and conservation activities; includes details of membership, events and activities, with lists of recent sightings and trip reports.