Fat Birder - Hertfordshire
Overview on bird sightings of the country including details on its habitats. Also includes related links for sources.
Hertfordshire Bird Atlas
Provides updates, data and distribution maps from this four year project which aims to map all of Hertfordshire's bird life.
Herts Bird Club
Promotes the study and recording of birds in the county, and conservation of wildlife habitats. Provides a sightings record, their surveys and projects, and a guide to birding sites.
Rye Meads Ringing Group
Studies the resident and migrant bird populations on an area of flood plain near Hoddesdon. Describes the area and their activities.
Promotes awareness of conservation and protection of birds in the local area. Includes details of events and projects, with a guide to places to see birds in the county.