UK Ecological Survey Calendar

Optimal survey windows by species, habitat, region and year

Quick selections

Hide surveys for species absent from the region

Year

Region

Upland site (>300 m)

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Optimal Sub-optimal Possible but limited Works / licensing window Sensitive period / constraint Today

Timeline

Windows are a planning aid compiled from published UK guidance (checked November 2026). Site conditions, weather, survey objectives and licence conditions can all change what is acceptable — always confirm the current guidance and licence terms with a suitably qualified ecologist and the relevant statutory body (Natural England, NatureScot, NRW or DAERA/NIEA).

Regional adjustment: for weather- and phenology-driven surveys (marked shifts by region), season start dates are moved later and end dates earlier for more northerly or upland areas. These shifts are indicative, not taken from guidance. Fixed regulatory windows (e.g. GCN eDNA 15 April–30 June) never shift.

Main guidance sources

Download calendar

Format

PDF (print)Timeline chart and dates table. Choose “Save as PDF” in the print dialog. Calendar (.ics)Import into Outlook, Google or Apple Calendar as all-day events. Spreadsheet (.csv)Every window with exact dates. Opens in Excel. Image (.png)Timeline chart, one image per year.

Years

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Surveys

Selected surveys All surveys for this region

Created by Basil Varghese