Managing Brush for Wildlife

Is brush good or bad for wildlife?

It depends on how much there is and what kind. Shrubs and young trees give cover, nesting sites and food, and many birds and small mammals depend on them. Too little brush leaves wildlife exposed, while too much can shade out grasses and wildflowers and reduce habitat variety.

Management aims for a balance: some thick cover, some open areas and a mix of species. Extension and NRCS guidance describe brush management that works with wildlife goals instead of clearing everything.

Brush also helps in less obvious ways. Thick edges next to open ground give small animals a short, safe run between food and cover, which is why completely clean fence lines often hold few birds.

• Brush offers cover and food
• Too much can reduce open habitat
• Aim for a mix of dense and open areas

What are your goals?

Decide what you want: more pasture, better wildlife habitat, safer fence lines or reduced fire risk. Different goals call for different approaches and sometimes conflict, so rank them.

Walk the property, mark thick stands and decide which areas to keep, thin or clear. Identify the species, since some are valuable native shrubs and some are invasive plants that deserve removal.

• Rank your goals
• Mark areas to keep, thin or clear
• Identify species before cutting

What methods can you use?

Options include hand cutting, mowing, grazing by animals such as goats in some situations, and, for some species, herbicide treatments. Each has costs, limits and effects on wildlife.

Some brush species resprout after cutting and need repeated treatment, while others do not. Ask your extension office which methods suit the species you have. Any herbicide must be used exactly as the label directs, with extra care near water.

Cutting without a follow-up plan often makes things worse, because many shrubs return thicker than before. Plan for a return visit within the same year or the next, and think about what you want growing in the cleared space.

• Match method to species
• Expect to retreat resprouting brush
• Follow every label instruction

What is a brush pile and how do you build one?

A brush pile is a stack of cut limbs and branches that gives small animals shelter from weather and predators. Placing larger logs at the base and layering smaller material above creates open spaces inside. Pennsylvania forestry researchers describe brush piles and snags as simple habitat additions.

Place piles near other cover, away from buildings and not in a place that blocks drainage. Check local rules on burning, since some areas restrict it.

• Use big pieces at the base for open space
• Place near existing cover
• Keep away from buildings

When should you do the work?

Timing matters. Avoid heavy brush clearing during bird nesting season when possible, since many birds nest in shrubs and thickets. Late summer, fall and winter are often better choices depending on your region.

Ask your state wildlife agency about protected species or seasonal restrictions in your area. Some birds and other animals are protected by law, and disturbing nests or habitat can create legal problems.

• Avoid clearing in nesting season
• Ask about protected species
• Check seasonal restrictions

How do you work safely?

Brush work involves sharp tools, chainsaws, mowers and uneven ground. Wear eye, ear and head protection, sturdy boots and gloves, and keep bystanders away. Do not work alone in heavy brush, and take regular breaks.

If the work involves large trees, power lines, steep slopes or heavy equipment you are not trained to use, hire a qualified professional. Take chainsaw training where available.

Keep a stock of fuel, a first aid kit and a charged phone nearby, and tell someone where you will be working. Brush work can wear you out faster than you expect.

• Wear full protective gear
• Do not work alone
• Hire professionals for hazardous jobs

What help and rules apply?

Cost categories include tools or equipment, fuel, labor and any professional services. NRCS and some state programs may provide technical or cost-share help for brush management and habitat work, but availability varies.

Rules may apply to clearing near streams, wetlands and steep slopes, and to burning. Ask your conservation district, state agency and local fire authority what is required before you start.

• Ask NRCS about assistance
• Check rules near water and slopes
• Get any burn permits first

Last reviewed: November 12, 2026. Written by the Homestead & Small Farm Editorial Team. See our editorial policy.