10th European Bat Detector Workshop

5 - 9 August 2017
Bidarrai, The Basque Country (France)

Accommodation - Objectives - Registration - The Pyrenees - Bat Fauna - Program -Travel instruction - Proceedings

In connection to the European Bat Research Symposium every three years, it has since 1991 been a tradition to organize a bat detector workshop just before or after the conference. With this years conference in Donostia (the Basque country), the 26 year old tradition was almost forgotten. So it is the pleasure of Nordic Chiroptera Information Center (NIFF) and Bluebat to inviting you to the 10th European Bat Detector Workshop.

The event will be organized in Bidarrai (the Basque country) just on the French side of the Spanish border, only 76 km from the conference in Donostia (San Sebastián).

The workshop will start on the same evening as the conference ends, allowing people to travel directly from one event to the other.

The European Bat Detector Workshop has traditionally been organized in connection to the European Bat Research Symposium. However, from 2011 there has been no practice for the symposium organizers to also organize the workshop.

The aim of the workshop is to get field training in practical bat work. This includes the use of various detectors, and capture techniques.

Responsible organizers:

  • Leif Gjerde (NIFF) (Mobile phone: + 47 40228817) (out of office 27-31 July, limited e-mail access)
  • Didier Mauuary (Bluebat) (Mobile phone: + 33 6 21457463)

Local organizers:

  • Nicolas Bernos (CPIE, the Pasque Country)
  • Nicolas Valet (Auddice)



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Final invitation - Program

Check this web page for frequent updates
Last updated 26 July 2017

Registered participants: 31

Algeria: 1
Australia: 1
Belgium: 1
Brazil: 1
Finland: 2
France: 13
Germany: 2
Italy: 1
Netherlands: 1
Norway: 2
Palestine/Israel: 1
Sweden: 3
Spain: 1
USA: 1


Lodging in Bidarrai lodge "Menditarrena" with capacity of 50 people.

  • 10 rooms, 3-7 people per room.
  • All rooms include bathrooms with showers, sinks and toilets
  • Sheets provided, blankets available
  • Dining room for 50 people
  • Fully equipped kitchen with large refrigerated volume
  • Meeting room for lectures and activities

Remember to bring sheets (all three) or sleeping bags.

The workshop is carried out on a low budget principal, meaning everything is based on self cost. The total cost will be 200 euros, which include accommodations (90 euro), food and other expenses (not travel costs to/from Bidarrai).

It is possible to find your own accommodation, in which the total cost will be reduced accordingly.


The Menditarrema lodge.



The objective of the workshop is to improve training and knowledge of the latest technology and experience on field identification of flying bats. The mixture of novice and well experienced bat workers (and everything between) enhances the learning process by self awareness and development.
      The target group is idealistic bat workers (enthusiasts/idealists, NGO's and scientists) who is or will work with bats in the future. Students and NGO's may apply for reduced fee. Commercial bat workers will be excepted if there is space.

  • Learn the basic theory of bat identification with the aid of ultrasound devices.
  • Field training in using active detectors, such as the Petersson (D240X, D980), the AnaBat Walkabout, the EchoMeter and misc. flat screen versions.
  • Learning how to operate the passive detectors produced by Pettersson (D500x), Titley (AnaBat Express and AnaBat Swift), Mini Batcorder (EcoObs) and Wildlife Acoustics (SongMeter 2, 3 and 4).
  • Analyzing bat calls by using software from Pettersson (BatSound), Titley (AnaLook), Biotope (SonoChiro 4) and Wildlife Acoustics (Kaleidoscope).

The results from our surveys will be published in the proceedings for the workshop, alternatively in a European periodical.

Equipment we will have available for testing are:

Passive detectors

  • AnaBat Express (Titley Scientific)
  • AnaBat Swift (Titley Scientific)
  • Mini Batcorder (EcoObs)
  • D500x (Pettersson Elektronik)
  • SongMeter 2 (Wildlife Acoustics)
  • SongMeter 3 (Wildlife Acoustics)
  • SongMeter 4 ZC (Wildlife Acoustics)
  • SongMeter 4 Full Spectrum (Wildlife Acoustics)

Active detectors

  • Pettersson (D100, D240x, D980, D1000x)
  • Titley Scientific (Walkabout)
  • Microelectronic Volkman (SSF Bat2. SSF Bat3)
  • Wildlife Acoustics (EchoMeter)


  • BatSound 4.2
  • AnaLook
  • SonoChiro 4
  • Kaleidoscope Viewer

Searching for bats at Felsőtárkány during the 7th EBDW.

Analysing bat sounds in Hungary during the 7th EBDW.

Chris Corben demonstrationg a car mounted microphone in Lithuania during the 8th EBDW.



For every participant we need to know when you expect to arrive, and if you are travelling by car. It may be possible to pick up participants in Donostia. We need to be notified of this as early as possible.

Deadline for registration is 27st of July, or until the number of beds are full.

Please contact Leif Gjerde on e-mail niff@flaggermus.no and send a copy to Didier Mauuary on e-mail dm@bluebat.org, and notify us...

  1. the time you expect to arrive
  2. if you travel by car, or wish to be picked up in Donostia
  3. what detectors you will bring (if you have any)
  4. title of talk (if you expect to have one)
  5. abstract of talk (if you are having a talk)
  6. if you bring with your own food or not

There is an upper capacity of the lodge at 50 people. We have so far (11 July 2017) received applications from 31 people (from 14 countries) who all have been accepted.

Normal full cost is 200 euro. This includes accommodations and food. Transportation to Bidarrai is not included. Make sure you have confirmation of participation before you pay!

Bank details for French participants: Bank number 30002, account number 0000070886N, Indicatif: 02644, Clé RIB: 84.

International payments (including all euro countries): IBAN no.: FR74 3000 2026 4400 0007 0886 N84, and SWIFT: CRLYFRPP for international payments to the Bluebat account.

Be sure to include details on what you are paying for, including name of participant!



Deadline registration:

Deadline abstracts
1st of July

Deadline manuscript
31st December 2017

Payment details:

IBAN number:
FR74 3000 2026 4400 0007 0886 N84


Bluebat, 7 Allee des Eyminees, F-38240 Meylan

Price list

  • 200 euro ― the whole package (food, lodging, participation fee)
  • *120 euro ― the whole package for students*
  • 50 euro ― Participation fee paid separately
  • 80 euro ― Food paid separately

*This applies only for students who pay from their own pocket. If the trip is covered from their university or through a scholarship, they pay full price!


The Pyrenees and the Lower Navarre region

Lower Navarre is a collection of valleys in the foothills of the Pyrenees. Bidarrai (French: Bidarray) is a commune of the Pyrénées-Atlantiques department in southwestern France. It is a Basque province of Lower Navarre. It is surrounded by low hills. The river Nive runs through the village.

Some links:



The Pyrenees.

The Bat Fauna

The bat fauna of the Basque country will cradually be presented here. So watch out for updates. So far we have confirmed the Nyctalus lasiopterus and Pipistrellus pygmaeus, and some new species are added to the list. The list is on 28 species!

Vespertilio murinus
Closest record was made in the Western Pyrenees just ca. 120 km to the south-east of Bidarrai. One male was caught on 25 July 2009 in the mountain pass of Sahún.
Source: Alberdi, Antton; et al. 2012. First records of the parti-coloured bat Vespertilio murinus (Chiroptera: Vespertilionidae) in the Pyrenees. Mammalia 76: 109-111. ISSN 1864-1547.

Plecotus macrobullaris
Found above 1500 meters above sea level in the eastern most tip of the Basque Country in the Pyrenees, but is challenging to find.


Bat species found in the Basque country:
  1. Rhinolopus euryale
  2. Rhinolophus ferrumequinum
  3. Rhinolophus hipposideros
  4. Nyctalus noctula
  5. Nyctalus leislerii
  6. Nyctalus lasioperus
  7. Vespertilio murinus
  8. Eptesicus serotinus
  9. Myotis alcatoe
  10. Myotis bechsteinii
  11. Myotis emarginatus
  12. Myotis escalerae
  13. Myotis daubentonii
  14. Myotis macrobullaris
  15. Myotis myotis
  16. Myotis mystacinus
  17. Myotis nattereri
  18. Myotis oxygnathus (=blythii)
  19. Pipistrellus pipistrellus
  20. Pipistrellus kuhlii
  21. Pipistrellus pygmaeus
  22. Pipistrellus savii
  23. Pipistrellus nathusii
  24. Plecotus auritus
  25. Plecotus austriacus
  26. Barbastella barbastellus
  27. Miniopteris schreibersii
  28. Tadarida teniotis (common)

Temporary program

Start: The workshop building will be accessible from 1700 h on the 5th of August, and the program starts at 1800 h.

End: We workshop will end on the 9th of August at 1200 h.

We will have at our disposal active and passive ultrasound detectors from three different producers (Titley Scientific, Petterson Electronic and Wildlife Acoustics). This will give the participants possibility to get familiar with different type of work equipment and possibilities that they offer.
      During the day we will analyze the recordings from previous evenings and attendants will be invited to have 20 minute lectures.
      In the evening we will divide in groups of five people that will check different areas for bats. Each group will have at least one experienced bat worker, who will lead them and be responsible for the quality of the collected data.

Lectures and workshop topics

  1. How to walk with the walkabout. Getting the most out of active monitoring.  (temporary title) – by Chris Corben
  2. 30 years of crossing zeroes: Comparing ZC and Full-spectrum.  (temporary title) – by Chris Corben
  3. A historical review through 27 years of tradition with European bat detector workshops (temporary title) – by Leif Gjerde
  4. Is sampling data with bat detectors an effective method for monitoring bat populations? Twentyfive years of experiences from monitoring bats in Norway, Sweden and Denmark  (temporary title) – by Leif Gjerde
  5. Using ultrasound devices for 3D tradjectory to monitor bat flight and behaviour. (temporary title) – by Didier Mauuary
  6. Acoustic monitoring and online web services (data saving, semi-automatic id and report) on the basis of the monitoring scheme Vigie-Chiro. – by Yves Bas
  7. Identification issues concerning ultrasound calls to Miniopterus vs. Pipistrellus – by Yves Bas
  8. Challenges in identifying ultrasound calls of Tadarida teniotis and Nyctalus lasiopterus, including social calls of N. leisleri – by Alexandre Haquart
  9. CloudedBats.org - free software for open data – by Arnold Andreasson
  10. Stereo recording applications to determine flight height classes, direction of flight and road crossings – by Yves Bas & Jean-Francois Julien
  11. Reviewing models of passive and active detectors – Discussion on quality, functionality and reliability. – Round table discussion
  12. Microphone quality and sensitivity – Testing in the field followed by discussion, organized by Didier Mauuary

Chris Corben talking about zero-crossing and the AnaBat system.

Leif Gjerde deploying a AnaBat SD2 passive detector.

Travel instructions

The 10th EBDW will take place in Bidarrai (in Euskara) / Bidarray (in French), a small village located 20 km from Biarritz (an iconic place for surfing).

The workshop will take place in the Menditarenna (name of building) at 43.265137 N 1.351035 W. It is a 15 minute walk from the train station in Bidarrai to the Menditarenna.

Some distances and travel times:

Stretch km Time (h.minutes)
Donostia - Bidarrai 76 1.10
Bilbo - Bidarrai 177 2.01
Bordeaux - Bidarrai 217 2.15

The nearest airports from Biddarai are:
1. Donostia/San Sebastián - EAS (Basque Country) - 76 km (1h 10min)
2. Bilbo - BIO (Basque Country) - 177 km (2h 1min)
1. Bordeaux BOD (France) - 217 km (2h 15min)

From Bordeaux to Biarritz
The public bus is already full. Trains depart every 2 hours for Biarritz.

From Donostia to Biarritz (bus company OUIBUS)
This bus departs from Federico García Lorca Pasealekua 2. with the following times:
0630 -> 0735
1000 -> 1105
1530 -> 1635

From Biarritz to Bidarray (French railway SNCF)
0614 -> 0818
1058 -> 1239
1354 -> 1528
1659 -> 1856
2032 -> 2148

The travel costs for the entire trip is around 20 euros.

Return on 9th of August:

From Bidarray to Biarritz  (French railway SNCF)
0631 -> 0746
0921 -> 1116
1328 -> 1451
1649 -> 1746
1941 -> 1055


A lecture about radio transmitters in Croatia during the 9th EBDW.

Mounting a harp trap in Ireland during the 6th EBDW.

Barataud demonstrating bat calls in the field France during the 5th EBDW.



There will be a DVD publication after the workshop which include pictures, soundfiles, analysis and statistics.

In addition we hope to publishing the results of our bat detector workshop in a special issue of Gudnjoloddi (ISSN 0809-2362). It will be published by NIFF and Bluebat together. The title will be "Proceedings from the 10th European Bat Detector Workshop, held in Bidarrai (Basque country) during 5th to 9th of August 2017". Leif Gjerde and Didier Mauuary will be editors of the proceedings. It is expected that each lecture will be published as a separate article in the proceedings. If no manuscript is received, we will publish the abstract alone.
      There is no limitation for the length of the articles, but the contents should be relevant to the talk. The proceedings will be in English entirely. There will not be included abstracts in Euskara, French or Norwegian.

Deadline for sending abstracts was 1st of July.
Deadline for contributing article manuscript is 31 December 2017.

Structure of reference for the proeedings
Gjerde, Leif. 2018.
A historical review through 27 years of tradition with European bat detector workshops. Gudnjoloddi (Lillestrøm) 32?: ?-?. ISSN 0809-2362.
Gjerde, Leif. 2018.
A historical review through 27 years of tradition with European bat detector workshops. Pp. ?-?, in Proceedings from the 10th European Bat Detector Workshop, held in Bidarrai (Basque country) during 5th to 9th of August 2017 (Leif Gjerde & Didier Mauuary, eds.). Nordic Chiroptera Information Center & Bluebat, Lillestrøm/Grenoble 2018. ? pp. ISBN 978-82-7905-106-0.

Sponsors providing field equipment:




Page established 4 March 2017
Last updated 22 July 2017

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