The League for the Protection of Birds (LPO) has released its first avifauna barometer, a comprehensive report based on data and observations collected over 50 years. This report examines how French ecosystems have changed due to factors such as landscape transformation, increased agricultural activity, and climate change. The initiative aims to be updated every year and depends on a network of 45,000 contributors who gather about 14 million data points annually. Additionally, nearly 200,000 people are involved with the LPO as members, volunteers, or supporters. This large-scale effort helps assess biodiversity, with birds playing a key role as indicators because of their position in food chains and their ability to accumulate pollutants from their environment. Birds are often used as bio-indicators, meaning their health and population trends can reflect the overall condition of their habitats. Issues like limited food sources, fewer places to nest, and higher levels of environmental contaminants can lead to habitat degradation, which then affects bird populations. Allain Bougrin-Dubourg, president of the LPO, explained that "The climate is changing and with it the habitats, the ranges of species, breeding periods, and migration routes. Protecting biodiversity today is no longer just about preserving what exists. It is about learning to accompany a living being that is being pushed, weakened, mistreated, and forced to adapt to a world that is changing." The LPO's work highlights the growing importance of monitoring ecological changes and adapting conservation strategies accordingly. The data collected by the organization not only tracks the health of bird populations but also provides valuable insights into broader environmental trends. As climate change continues to reshape natural habitats, the role of such organizations in understanding and addressing these changes becomes increasingly critical. The initiative also underscores the value of public participation in scientific research. By engaging a large number of volunteers, the LPO is able to collect vast amounts of data that would be difficult to obtain through traditional methods alone. This collaborative approach not only enhances the accuracy of the findings but also raises awareness among the public about the importance of biodiversity conservation.