This national survey is planned.

A repeat of this survey, last performed in 2002, was planned for last year but cancelled due to the Corona virus.  However, Natural England have confirmed the funding for this BTO/RSPB survey to be conducted in 2021. Thank you if you had already signed up for the survey. The purpose is to assess existing and new wet grassland and other breeding wader habitats for birds such as Curlew, Lapwing, Redshank and Snipe. It will involve up to four visits from mid-April to the end of June within allocated sites. Surveyors will need to be able to identify common waders by sight and sound and be familiar with display and territorial behaviour.

Visits should be at least a week apart and be made between dawn and midday - avoiding cold, wet or windy weather. A map will be provided showing the boundary of your site.

                                                                                                                                                                                                                                                            For full information and the complete list of sites see the BTO website: -

It’s not too late to sign up!

In Herts there are 24 sites that have still not been allocated to surveyors. Those that are on wetlands within river valleys in the county are listed here. The letters/numbers are the BTO codes for each site.

East Herts (11 sites)

Just south of Brent Pelham (B_2596)

Wateringplace Green, South-west of Buntingford (3488)

Twyford Lock, Bishops Stortford (3469)

Thorley Wash, Bishops Stortford (3468)

Hallingbury/Sawbridgeworth Marshes (3467)

Roydon (3465)

Broxbourne (3448)

Hertford to Essendon (3456 A and B)

Stort Navigation (3466 A and B)


West and South-west Herts (9 sites)

Wall Hall, Watford (3405)

Hunton Bridge, Watford, Gade (3417)

Hampton Hall Farm, Colne (3403)

Maple Cross (3401)

Croxley Gravel Pits, Rickmansworth area (3415)

Chess Valley, Rickmansworth area (3410)

Hemel Hempstead to Kings Langley (3419 A and B)

Bulbourne Quarry, Tring (0636)


In addition to the 20 sites above there are four Lapwing Plots still unallocated.