Bat Survey, Wirral: Protected Species Surveys

What is a Bat Survey?

Bat activity surveys are required for some developments to assist with planning applications during the planning permission process to find out whether the development could impact bats in the area. Typically, the local planning authority will let you know whether a bat survey is required in order for the work to be carried out. The need to undertake bat ecological surveys could also be identified during a PEA survey.

Bat surveys detect presence or the likely absence of bats within the development area so that the planning and development process can proceed.

These measures are required as bats, and bat roosts, are protected species under the Wildlife and countryside Act, and they are also a European protected species under UK and European Legislation. Therefore, it is illegal to kill, harm or disturb bats in any way.

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Types of Bat Survey, Wirral

There are two types of bat surveys that can help you to find out whether signs of bats are present. The first ecological service is a phase 1 preliminary roost assessment which involves an Ecology Consultant carrying out a site visit. The bat roost assessment will carry out both an internal and external inspection of the building, looking for evidence of roosting bats, including insect feeding remains as well as bat droppings.

The second type are nocturnal bat emergence surveys. Emergence and re-entry surveys involve surveyors using bat detectors to record and analyse bat calls. These surveyors will operate either when bats are leaving their roosts to forage (dusk emergence surveys) or when the bats return to their roosts (dawn re-entry surveys) to determine the number of bats.

How Can Collington Winter Assist?

Collington Winter Environmental, we are an experienced team of ecological consultants with extensive knowledge in undertaking bat and hibernating bat surveys using good practice guidelines. Our Ecology Director, Olivia Collington, holds a Natural England bat licence and has worked with protected species throughout the UK.

Please get in touch with our Ecology Director Olivia Collington via email ( for information on protected species surveys, such as bats and great crested newts. We also provide ecological appraisals and assessment services.

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23 Bark Street East, 1st Floor, Bolton, BL1 2BQ

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Future Business Centre, Cambridge Campus, Kings Hedges Road, Cambridge, CB4 2HY


Head Office: 01204 939 608

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