Citizen scientists across Germany are participating in ongoing efforts to monitor bird populations, with data collection focused on observing and reporting sightings. Participants are encouraged to document the highest number of any given bird species observed, even if multiple smaller groups are seen. Reporting can be done through online forms, or with the aid of tools like bird identification apps or resources provided by organizations like the Nabu.
Tracking Trends and Rare Sightings
Last year, over 4,000 bird enthusiasts in Thüringen alone contributed to the monitoring effort, with approximately 85,000 participants nationwide. While this figure is below the record of 130,000 set during the first winter of the COVID-19 pandemic, conservationists say reaching 100,000 submissions this year would be a positive outcome. The collected data is particularly valuable for tracking rare species, such as the Gebirgsstelze, which is observed in winter near open water.
Declining Sparrow Populations Raise Concerns
The Nabu is particularly concerned about declining populations of the Feldsperling (Field Sparrow) and Haussperling (House Sparrow). Sightings have decreased from an average of 4 birds per garden or park in 2020 to just 2 or 3 in 2025. While natural fluctuations occur, experts believe the reduction is linked to the loss of natural habitats within urban and rural areas, including a decrease in deadwood, wild patches, and overgrown vegetation.
Conservationists emphasize the importance of ongoing engagement with local bird populations, suggesting actions like providing dedicated feeding stations for specific species, installing sparrow houses, and incorporating nesting spaces into building renovations.
Frequently Asked Questions
How should bird sightings be reported?
Sightings should be documented by recording the highest number of a particular bird species observed, and then submitted via an online form. Bird identification apps or resources from the Nabu can also be used.
What was the highest number of participants in this monitoring effort?
The highest number of participants was 130,000, recorded during the first winter of the COVID-19 pandemic.
Which bird species are currently causing the most concern for the Nabu?
The Feldsperling and Haussperling are causing the most concern, as their populations have been declining, from 4 birds sighted per garden/park in 2020 to 2-3 in 2025.
As habitats continue to change, what role do you believe individual citizens can play in supporting local bird populations?
