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The Barn Owl Trust

Conserving the Barn Owl and its Environment

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Licences to disturb nesting Barn Owls

 
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Licences to disturb nesting Barn Owls

Anyone who intends to undertake an activity that is likely to result in the disturbance of nesting Barn Owls or their dependent young, or handle nesting Barn Owls, their eggs or young, should apply for a licence or permit well in advance. These are issued by the relevant country agencies: Natural England, Scottish Natural Heritage, the Countryside Council of Wales and the Northern Ireland Environment Agency. Licences are location specific (site, county, region) and expire at the end of November each year. They are issued with the stipulation that licence holders must take all measures as appropriate to minimise disturbance.

Licence applications for the purpose of nest recording or bird ringing are made to the British Trust for Ornithology (BTO), which issues permits on behalf of the country agencies. All such licences and permits are generally referred to as ‘Schedule One licences'.

 

Each licence identifies the activity it is issued for, such as ‘observe’, ‘examine’, or ‘take and possess’. A surveyor who only holds a licence to observe would have to depart immediately if birds were inadvertently flushed from a nest, so that they could return as quickly as possible. A bird ringer’s licence to examine would permit the catching and processing of adults and young and the weighing and measuring of eggs if necessary. Processing usually involves weighing, measuring, age and sex determination and ringing. All nest inspections must be carried out as quickly and quietly as possible. As soon as processing is complete, everything must be returned to the nest and the site vacated as quickly as possible. Photographs of the nest may be taken without the need for a specific photography licence, provided that they are not the object of the exercise and do not prolong the visit. Research has shown that incubating females can tolerate brief nest inspections, provided they are getting sufficient food (Taylor, 1991).

Applicants need to provide two references from those who have first-hand knowledge of their work with the species and the methods for which the application is being made. Ideally, referees would have held a similar licence themselves within the last three years. At least one of the referees should preferably be from a different organisation from the applicant. A report must be submitted to the licensing body within two weeks of expiry of the licence, detailing exactly when and where the licence was used and what was observed. To renew a licence from the date it expires, a request must be sent at least three weeks prior to expiry with a report form completed to that date. Licensing authorities will not normally issue a licence until the previous year’s report has been received.

Licences are not normally issued for the removal or translocation of Barn Owls in order to facilitate development.

Barn Owls are not a European Protected Species (EPS) (unlike, for example, bats, Eurasian Otters Lutra lutra, Dormice, Great Crested Newts Triturus cristatus, Natterjack Toads Epidalea calamita, Smooth Snakes Coronella austriaca and Sand Lizards Lacerta agilis). Therefore an EPS licence is not required. Because Barn Owl licences lie outside the EPS system, measures aimed at the protection, mitigation and enhancement of the species receive no external validation. In a typical planning scenario, the ecological surveyor’s report is often the only thing standing between success and failure.

 
nest on wall

Legal aspects of the inspection/surveying of potential nest/roost sites

The need for a licence

Natural England advises that a licence will be required for anyone entering potential Barn Owl sites for the purpose of owl surveying, because disturbance is considered likely. Therefore, an ability to assess a site’s potential to accommodate Barn Owls is an important skill for surveyors. Surprisingly, Barn Owl licences are not necessarily required when surveying for other species (e.g. bats), unless there is information suggesting that disturbance to breeding Barn Owls may be caused. In light of the fact that the species has been recorded with eggs or dependent young in every month of the year, and that site status can change at short notice, it is wise for surveyors to obtain a licence, irrespective of the primary target species.


Avoiding uncoordinated visits
Schedule 1 licence holders are required (by a licence condition) to contact the landowner(s) of the sites they intend to visit in order to avoid duplication (multiple visits by uncoordinated licence holders) and thereby minimise disturbance. When obtaining site access permission it is always advisable to ask if anyone else has visited the site for a similar purpose, or if anyone else has permission to do so. The use of landowner liaison as a means of initiating coordination between licence holders is unreliable at sites where more than one person is able to give access permission. This is best avoided by asking the landowner directly if anyone else (perhaps a relative, tenant or agent) might have granted access permission to someone else for the same site.

 

Minimising disturbance: let your survey objective dictate your approach’

All Schedule 1 licences and permits clearly state that the holder is ‘expected to exercise the utmost care to avoid undue disturbance’. The most fundamental way in which disturbance during surveys is minimised is by choosing the search method that best suits the survey objective.

There are two ways of searching a potential Barn Owl site: bottom-up and top-down. A bottom-up survey starts with a search of the least likely place the owls will be nesting (typically the lowest building or hollow stump) and gradually progresses through the site, leaving the most likely place until last – very often the top part of the tallest building or the highest suitable tree cavity. Conversely, a top-down survey starts with a search of the most likely nesting place and works its way down to the least likely part of the site. It is imperative that the most appropriate search method is used.

 

What can be undertaken without a licence?
In determining whether or not a licence is needed, the proposed activity should be compared to the activities the birds are used to. For example, a licence is not required for quietly collecting owl pellets from the ground floor of a two-storey building that has Barn Owls nesting in the upper storey. However, it would be unwise to enter the upper storey, unless one knew for certain that the birds were already accustomed to this and there is evidence to suggest it has no effect on them. Any quiet short-duration activity that is confined to ground level is most unlikely to be disturbing.

Where Barn Owls are nesting in an elevated tree cavity, a licence would not be required for quietly picking up owl pellets around the base of the tree. The quiet use of the footpath that has always passed beside it would not require a licence, nor would the farmer doing his annual hay cut within a few metres of it. However, anyone climbing the tree, or leaning a ladder against it, would need a licence.

If in doubt, apply for a licence.

 

There is more information on this topic in the Barn Owl Conservation Handbook

 

 
 
 
The Barn Owl Trust is dedicated to conservation & education and does not operate a visitor centre.
Barn Owl Trust staff and volunteers
Waterleat, Ashburton, Devon TQ13 7HU
+44 (0) 1364 653026
info@barnowltrust.org.uk