Bat Surveys Pembrokeshire: Protected Species Surveys

Bat activity surveys are a vital component of many development projects across Pembrokeshire, especially where work may impact local wildlife or sensitive habitats. As bats are classified as European Protected Species, both bats and their roosts are fully protected under the Wildlife and Countryside Act 1981 and the Conservation of Habitats and Species Regulations 2017. Any actions that could disturb bats or alter their roosts require comprehensive ecological assessments and current survey data.

Local planning authorities in Pembrokeshire and surrounding areas frequently request bat surveys as part of the planning application process, particularly if there is evidence of bat activity or suitable roosting features on-site. These surveys must be undertaken by qualified, licensed ecological consultants to ensure compliance with legal and environmental obligations.

At Collinton Winter, we offer a complete range of bat and ecological survey services throughout the UK. Our experienced, licensed ecologists bring in-depth knowledge to every project, working closely with developers to meet planning requirements while protecting bat populations and their habitats.

Pembrokeshire hosts various species of bats, including the common pipistrelle, soprano pipistrelle, Nathusius’ pipistrelle, brown long-eared bat, Daubenton’s bat, whiskered bat, and Brandt’s bat.

Bat surveys are generally carried out between May and September, when bats are most active and easier to detect. If summer surveys confirm bat presence, winter surveys may also be needed to assess potential hibernation behaviour.

Our ecology team will recommend the most suitable survey based on your site and project requirements. Common types of bat surveys include:

Preliminary Roost Assessment (PRA) – A visual inspection of buildings, trees, or structures to identify potential bat presence through signs such as bat droppings, staining, or entry points.

Dusk and Dawn Surveys – Monitoring bat activity as they emerge at dusk and return at dawn using acoustic detectors and night-vision equipment.

Nocturnal Activity Surveys – Night-time surveys to map bat commuting routes, identify feeding areas, and determine species using echolocation analysis.

Hibernation surveys: During the winter months, hibernation surveys may be conducted to locate bats looking to hibernate in sites such as caves, mines, tunnels, and tree cavities.

The findings from these surveys help to shape necessary mitigation strategies and inform next steps if a bat roost is discovered.

If you are planning a project in South-West Wales and require a bat survey or expert ecological advice, Collington Winter is here to assist. We offer preliminary ecological appraisals, landscape architecture support, and a wide range of ecological services to support your development while protecting the natural environment.

In addition to bat surveys, we also carry out assessments for other protected species including great crested newts, breeding birds, and otters.

To discuss your project or request a survey, please contact us at info@collingtonwinter.co.uk, call 01204 939 608, or complete the enquiry form below. Let’s ensure your project moves forward with confidence and ecological care.