As February comes to a close, developers, contractors, and land managers across North Wales should take note of a familiar seasonal constraint: the start of the bird nesting season, and with it, restrictions on hedgerow and scrub cutting.
From 1st March to 31st August, hedgecutting is largely off-limits under both wildlife law and cross-compliance rules. Getting it wrong can halt projects, delay delivery schedules, and trigger legal enforcement.
This isn’t just an issue for agriculture. It affects infrastructure schemes, housing developments, utility work, highways maintenance—even small-scale clearance jobs. If your programme includes hedgerow management, now is the time to act.
Legal Framework: Why 1st March Matters
Under Section 1 of the Wildlife and Countryside Act 1981, it is an offence to intentionally damage or destroy the nest of any wild bird while it’s in use or being built. Nesting birds don’t just stick to the countryside either—hedges, scrub, tree lines and even bramble patches in urban and semi-urban areas may be used.
This protection applies all year round, but the period between March and August is classed as the main nesting season. It’s specifically referenced in:
- Defra guidance and agri-environment scheme conditions
- Glastir and cross-compliance rules in Wales
- NRW and Local Planning Authority (LPA) expectations for development sites
Put simply: outside of the nesting season, works are far easier to plan. Inside that window, things get more complex—and riskier.
Implications for Development and Infrastructure Projects
We regularly work with clients who aren’t aware that small vegetation works can pose a legal risk if carried out at the wrong time. This is especially common in housing, utilities, highways, and enabling works.
Examples we see often include:
- Trimming hedgerows or field margins during groundworks
- Scrub clearance for compound areas or temporary access
- Vegetation management within utility easements
Even if the work is minor, carrying it out in March without proper checks can result in project delays or enforcement notices. NRW and LPAs will expect you to show that ecological risks have been assessed and mitigated.
What Can Still Be Done After March 1st?
Some vegetation work can continue during the nesting season—but only if an ecologist has first confirmed there are no active nests present.
This involves:
- A nesting bird check carried out immediately before works (ideally same-day)
- A suitably experienced ecologist on site to assess risk and site conditions
- Clear documentation to demonstrate compliance if needed
Bear in mind that the discovery of even a single active nest—whether robin, wren, or blackbird—is enough to halt work in that area until nesting is complete. The precautionary principle applies, and rightly so.
Planning Ahead: What You Should Be Doing Now
If your project includes vegetation clearance, hedgerow work or scrub management, early planning is crucial. Ideally, this should already be built into your Gantt chart or phasing plan.
Eco-Scope recommends:
- Checking your schedule for vegetation works due after 1st March
- Bringing forward hedgecutting to February if possible
- Booking a nesting bird check in advance if work in March can’t be avoided
- Briefing contractors on seasonal ecological constraints
Even short delays at this time of year can knock a well-planned programme off course—especially if ecology isn’t considered until the point of mobilisation.
How Eco-Scope Can Help
We support developers, planners and contractors with practical, proportionate ecological advice, including:
- Pre-clearance checks for nesting birds, reptiles and small mammals
- Ecological Clerk of Works (ECoW) supervision during active construction
- Site phasing advice and mitigation strategies to avoid compliance issues
- Documentation to support planning discharge or audit requirements
Our team works throughout North Wales and understands how to balance legal compliance with commercial pressures—avoiding both unnecessary delays and excessive risk aversion.
Final Reminder
From 1st March onwards, hedgerows and scrub are functionally protected—even if the law doesn’t spell it out in those exact words. If you haven’t already planned around this constraint, now is the time to do so.
For advice specific to your site, or to book a pre-clearance check, contact the Eco-Scope team today.