© Marcel Burkhardt
Swiss Bird Index SBI®
Birds are considered reliable indicators for changes in the environment and its habitats. An individual species’ increase or decline, however, is dependent on multiple factors. That makes a general assessment of the changes occurring in its habitat difficult. Indices based on the trends of several species, on the other hand, make such assessments possible. The Swiss Bird Index SBI®, updated annually, contains a set of such indicators. It therefore provides an important foundation for authorities, environmental organisations and nature conservation groups.
- Keeping authorities, politicians and the general public informed about environmental issues on the basis of significant indicators
- Evaluating the outcomes of nature conservation concepts and measures
- Using the indicators as a foundation for environmental policy
- Population indices for individual species serve as Switzerland’s contribution to the international indices of European breeding birds that are calculated by the European Bird Census Council EBCC (Pan-European Common Bird Monitoring Scheme PECMBS)
The Swiss Bird Index SBI® is calculated based on single species indices of regular breeding birds. We use various methods to calculate these indices, which are in proportion to population size, depending on our data. Trends have been calculated from 1990 onwards. The index is set to a value of 100 for the year 2000. For common breeding birds, the annual values are based on data from the programme “Monitoring common breeding birds”. For rare breeding species, they are based on the percentage of occupied kilometre squares. We also take into account that observation effort has increased significantly in the past years. For particularly closely monitored species, we base our calculations on countrywide or regional population numbers.
Data on population trends of individual species are mathematically combined to form a set of combined indices (species groups), the Swiss Bird Index SBI®. The annual combined indices are equivalent to the geometric mean of the single species indices. Between 1990 and 2015, six species have become regular breeding birds and are therefore now included in the indices, namely Great Cormorant, Purple Heron, Common Eider, Bearded Vulture, Mediterranean Gull and European Bee-eater. The mathematical processing of these new regular breeding species was adjusted with the annual update of the index to SBI 2015. As a consequence, there are some deviations in the indices of previous years. These are most evident in the case of SBI wetlands, as four of the six new species are included in this index. The basic data, i.e. the individual species indices, naturally remain unchanged.
The Swiss Bird Index SBI® is used to evaluate progress in the implementation of conservation measures, such as the Convention on Biological Diversity, agricultural policy goals, and the federal biodiversity strategy.
The Swiss Bird Index SBI® consists of a general index of all regular Swiss breeding birds as well as several sub-indices. For the sub-indices, species are divided into groups according to a special interest list (Red List, Swiss Species Recovery Programme, International Responsibility, Environmental Objectives for Agriculture), habitats (forest, agriculture, wetlands, alpine habitats, settlements), and the SBI® Climate Change (species that are predicted to increase or decline with climate change). All indices are updated annually using the latest results. The general index and several sub-indices are incorporated into various statistics of the Federal Offices for the Environment, Statistics, and Agriculture. You can download a complete overview of all SBI® combined indices here. Selected results concerning the SBI® are discussed in more detail in the annual report on the state of birds in Switzerland.
The State of Birds in Switzerland. Report 2020.
The State of Birds in Switzerland. Report 2019.
The State of Birds in Switzerland. Report 2018.
The State of Birds in Switzerland. Report 2017.
The State of Birds in Switzerland. Report 2016.
The State of Birds in Switzerland. Report 2015
SBI Bird Index SBI® Climate Change.
Swiss Bird Index SBI® - Kombinierte Indices für die Bestandsentwicklung von Artengruppen regelmässig brütender Vogelarten der Schweiz 1990-2004.
Gemäss den Corona-Regelungen des Bundes bleibt das Besuchszentrum bis am 28. Februar 2021 geschlossen.
Unsere Vogelpflegestation funktioniert wie gewohnt weiter. Vögel nehmen wir täglich (Montag-Sonntag) von 09.00-12.00 und von 13.30-17.00 Uhr entgegen.
Aufgrund der verschärften Corona-Massnahmen sind unsere Mitarbeiterinnen und Mitarbeiter grösstenteils im Home Office. Bitte haben Sie Verständnis, wenn wir momentan nicht alle Anfragen sofort bearbeiten können. Wir sind Ihnen dankbar, wenn Sie uns primär per Mail kontaktieren, ausser in Notfällen.
Herzlichen Dank für Ihr Verständnis.
Ihre Schweizerische Vogelwarte Sempach
Informations sur le coronavirus
Selon les mesures de la Confédération contre le coronavirus, le centre de visite sera fermé jusqu’au 28 février 2021.
Notre station de soins fonctionne normalement. Nous réceptionnons les oiseaux tous les jours (lundi-dimanche) de 09.00 à 12.00 et de 13.30 à 17.00.
En raison des mesures Covid plus strictes, la plupart de nos employés télétravaillent depuis leur domicile. Nous ne sommes actuellement pas en mesure de traiter toutes les demandes immédiatement. Nous vous serions reconnaissants de bien vouloir nous contacter principalement par courrier électronique, sauf en cas d'urgence. Nous vous remercions de votre compréhension.
Votre Station ornithologique suisse de Sempach
In conformità alle misure della Confederazione contro il coronavirus, il Centro visite è chiuso fino al 28 febbraio 2021.
Il nostro Centro di cura per uccelli continua a funzionare normalmente. Gli uccelli vengono presi in consegna giornalmente (lunedì-domenica) dalle 09.00 alle 12.00 e dalle 13.30 alle 17.00.
A causa delle misure più severe di Corona, la maggior parte dei nostri dipendenti si trova nei loro uffici di casa. Vi preghiamo di comprendere che non possiamo elaborare tutte le richieste di informazioni immediatamente. Vi saremmo grati se poteste contattarci principalmente via e-mail. In caso di emergenza, tuttavia, siamo naturalmente a vostra disposizione. Grazie per la vostra comprensione.
La vostra Stazione ornitologica svizzera
Informations concerning the coronavirus
Due to the measures taken by the Swiss government against the coronavirus, the visitor centre will be closed until February 28th 2021.
Our bird care station continues to operate as usual. We accept birds daily (Monday-Sunday) from 09.00-12.00 and from 13.30-17.00.
Due to the stricter Corona measures, most of our employees are in their home offices. Please understand that we cannot process all inquiries immediately. We would be grateful if you could contact us primarily by e-mail. In case of emergency we are of course available for you. Thank you for your understanding.
Your Swiss Ornithological Institute