State of Birds 2015–2022

State of Birds 2022

The State of Birds in Switzerland: Report 2022

State of Birds 2021

The State of Birds in Switzerland: Report 2021

State of Birds 2020

The State of Birds in Switzerland: Report 2020

State of Birds 2019

The State of Birds in Switzerland: Report 2019

State of Birds 2018

The State of Birds in Switzerland: Report 2018

State of Birds 2017

The State of Birds in Switzerland: Report 2017

State of Birds 2016

The State of Birds in Switzerland: Report 2016

State of Birds 2015

The State of Birds in Switzerland: Report 2015