map viewer

Pilot maps from the second European Breeding Bird Atlas

Finding out where breeding birds occur in Europe and how this has changed


EBBA2 pilot

About the viewer

This viewer is a tool to visualise the maps of the EBBA2 project. Information depicted in the 50x50 km maps is shown in a grid of points corresponding to the squares of the Universal Transversal Mercator (UTM) grid, the same grid used in the first European Breeding Bird Atlas. Europe is divided in 5 217 squares. The majority of these are regular squares (2 500 km2), but there are also irregular squares with an area larger or smaller than 2 500 km2. Each square has its own code (e.g. 34UFE3).

The maps show the following information for each square:

  • Ocurrence: Shows where the species was reported as a breeder (possible, probable or confirmed, plus those reported in some cases just as breeders)
  • Breeding category: Shows information of the breeding assessment (possible, probable and confirmed). Depending on the national dataset, this information came from the highest atlas code or the expert breeding assessment. See details on these categories and possibilities in the EBBA2 methodology.
  • Abundance: Shows the number of breeding pairs estimated for each square. See details on the abundance categories in the EBBA2 methodology.
  • EBBA1 vs EBBA2: Shows the occurrences reported in the pilot data provision and in the first atlas, distinguishing squares in which the species was found in the two atlases or just in one of them.

All the information reported in this viewer should be considered as preliminary data from the pilot data provision. Final maps are expected to be available at the end of the project, by 2020. Please contact us for further information

Second European Breeding Bird Atlas

EBBA2: a new European Breeding Bird Atlas - an exciting new challenge for European ornithology providing vital data for conservation

The European Bird Census Council (EBCC), together with its partners across Europe, plans to produce a new atlas for breeding birds in Europe, to update the ground-breaking first atlas (Hagemeijer & Blair 1997), whose data are now 30 years old.

What will the new Atlas achieve?

  • The Atlas will provide up-to-date distribution maps for birds across the whole of Europe.
  • The Atlas will show changes in species distribution since the 1980s.
  • The volume of bird data collected for the Atlas will make it one of the most comprehensive biodiversity data sets in the world.
  • New analytical approaches will allow better maps of range and relative abundance than ever before.
  • The Atlas will build capacity for conservation and monitoring in areas where this is most needed.

More information at the EBBA2 website


The EBCC is an association under Dutch Law of like-minded expert ornithologists co-operating in a range of ways to improve bird monitoring and atlas work and thereby inform and improve the management and conservation of bird populations in Europe.


EBBA2 Coordination Team
Sergi Herrando
Catalan Ornithological Institute
Natural History Museum of Barcelona
Plaça Leonardo da Vinci 4-5
08019 Barcelona
Catalonia, Spain
phone: +34-932565991
email: [javascript protected email address]
EBBA2 Coordination Team
Petr Vorisek
Czech Society for Ornithology
Na Belidle 34
CZ-150 00 Prague 5
Czech Republic
phone: +420-257212465
email: [javascript protected email address]
EBBA2 Atlas Steering Committee Chair
Verena Keller
Swiss Ornithological Institute
Seerose 1
CH-6204 Sempach
phone: +41 414629720
email: [javascript protected email address]

Find out more about the other two main EBCC projects

Pan-European Common Bird Monitoring Scheme (PECBMS)

EuroBirdPortal (EBP)