Bird Surveys

Birds

In the UK, the Wildlife and Countryside Act 1981 makes it illegal to intentionally kill, injure, or take any wild bird, or to take, damage, or destroy the nest of a wild bird while it is being built or in use, as well as to take or destroy its eggs.

Additional protections are apply to Schedule 1 species, which are protected from disturbance while nesting. Other relevant legislation includes the European Birds Directive and the Natural Environment and Rural Communities Act.

All birds are therefore protected, making it an offence to:  

  • Kill, injure or capture wild birds
  • Destroy the nest of a wild bird while it is being built or in use, as well as to take or destroy its eggs

Birds can be affected by a range of situations including:

  • Developments that impact bird habitat or species

Surveys may also be needed to inform conservation projects, changes in land use or site management activities.

The best time of year to conduct surveys can be found in our ecology calendar.

If your Preliminary Ecological Appraisal has highlighted concerns about birds within your site - you may need the surveys listed down below:

Adonis Blue will work with you to carry out the necessary surveys for your site.

Certain species-specific surveys (eg. Barn Owl) may have different timing requirements, therefore we recommend contacting us for further guidance and advice.

Bird Surveys

Here are the main types of bird surveys used in development contexts:

Breeding Bird survey

  • Purpose: Assessing the presence, abundance and breeding activity of birds within a specific area to establish a baseline bird population and help assess the potential impacts on breeding birds and their habitats
  • Method: Walking around the site and identifying birds by sound and sight to identify territories and how birds use the site
  • Timings: March - July
  • Number of surveys: 6 visits, spread over the 4 months
  • The surveys need to be carried out by a trained specialist who knows what to look for and how to identify birds and their behavior

Wintering Bird survey

  • Purpose: Record and assess bird species that use an area during migration and winter months. To help identify important feeding and roosting sites, monitor population trends, and determine whether a site supports significant numbers of birds
  • Method: Walking around the site and identifying birds by sound and sight to identify how birds use the site
  • Timings: November - March
  • Number of surveys: 4 visits, spread over the 4 months
  • The surveys need to be carried out by a trained specialist who knows what to look for and how to identify birds and their behavior

Advice and Mitigation

We provide advice on a wide range of bird mitigation measures, including:

  • Barn owl advice and checks, including bird ringing and licensed survey work
  • Guidance on the installation and correct placement of bird boxes
  • Creation of alternative habitats to compensate for the loss of bird habitat
  • Ongoing surveys to monitor rare and protected bird species
  • Bird surveys to support Ecological Impact Assessments (EcIA)