Environment and Ecology

At Bristol Arboriculture Ltd we believe that two stroke fuel is obsolete and with technology advancing, related industries should also advance to enable protection of the environment. We only use alkalyte petrol in our two stroke machines so as to preserve the environment and our health!

We believe that the government should drop charging road tax duty on alkalyte fuel so as to make it more accessible to two stroke users, in the mean time we have adopted using electric saws for smaller jobs so as to offset the cost of using alkalyte fuel to prevent an increase in costs to our customers.

Better for your health, the engine and our environment

When you use alkalyte petrol, you avoid dangerous substances such as benzene and aromatic hydrocarbons, substances that can cause serious health problems. The engine is also treated more kindly, for example, the spark plug and combustion chamber are kept cleaner. Environmentally, there are numerous benefits, e.g. the formation of ground-level ozone (smog) is reduced by more than 50%.

Trees in conservation areas

Find out about trees in conservation areas and when you need to tell your local authority about proposed works

If you want to carry out works to trees in a conservation area you must give your local authority six weeks’ notice of your intention to do these works and must not start work within that period.

 Tree works

We must give the council notice if we plan to do works that include the felling, pruning, lopping, topping and cutting the roots of a tree in a conservation area.

What works can be done without giving notice

  • works to a tree of a diameter not more than 75mm at 1.5 metres above ground level, or 100mm if cutting down trees to improve the growth of other trees, for example thinning operations
  • where works are needed to carry out a full planning permission
  • the pruning of fruit trees where the trees are cultivated and the pruning is needed for fruit production
  • works carried out by, or on behalf of, us
  • where a tree is dead or imminently dangerous; you’ll need to give your local authority notice of works to dead or dangerous trees.

Find out more about dead or dangerous trees

How to give notice

We will carry out applications for tree works to TPO protected trees or in conservation areas on your behalf for a small fee.

Habitat protection

The new standard BS 8596 describes, in a simple and comprehensive way, how to survey trees and woodland for signs of bat presence. Covering everything from individual garden trees to woodland, the standard outlines a fit-for-purpose process involving scoping surveys, roost surveys and activity surveys. It also gives guidance on presenting the data and when to call in a bat specialist.

With BS 8596 you can manage your regulatory risk, gaining assurance that you’ve followed best practice. It’ll be valuable not only for arboriculturalists, woodland managers and operatives, but also for planning officers, developers, ecological consultants, utility companies and flood risk managers among many others.

Nesting Birds

The Wildlife and Countryside Act 1981 is the primary legislation which protects animals, plants, and certain habitats in the UK.

Information on the legal protection afforded to wild birds in England, Wales and Scotland in Part 1 of the Act is given in these pages. However, we cannot hope to answer all specialist queries or problems on the website. For detailed information, it is advisable to consult the Act itself, which is available from HMSO – please see the Acts of the UK Parliament link on this page.

Please also note that because of devolution there are now some significant differences in the law between the constituent countries of the UK.

Definition of a wild bird

Under the Wildlife and Countryside Act, a wild bird is defined as any bird of a species that is resident in or is a visitor to the European Territory of any member state in a wild state.

Game birds however are not included in this definition (except for limited parts of the Act). They are covered by the Game Acts, which fully protect them during the close season.

Basic protection

All birds, their nests and eggs are protected by law and it is thus an offence, with certain exceptions (see Exceptions), to:

  • intentionally kill, injure or take any wild bird
  • intentionally take, damage or destroy the nest of any wild bird whilst it is in use or being built
  • intentionally take or destroy the egg of any wild bird
  • have in one’s possession or control any wild bird, dead or alive, or any part of a wild bird, which has been taken in contravention of the Act or the Protection of Birds Act 1954
  • have in one’s possession or control any egg or part of an egg which has been taken in contravention of the Act or the Protection of Birds Act 1954
  • use traps or similar items to kill, injure or take wild birds
  • have in one’s possession or control any bird of a species occurring on Schedule 4 of the Act unless registered, and in most cases ringed, in accordance with the Secretary of State’s regulations (see Schedules)
  • intentionally or recklessly disturb any wild bird listed on Schedule 1 while it is nest building, or at a nest containing eggs or young, or disturb the dependent young of such a bird.


The maximum penalty that can be imposed for an offence under the Wildlife and Countryside Act – in respect of a single bird, nest or egg – is a fine of up to £5,000, and/or six months’ imprisonment.