The birds of our planet are endangered – we’ve lost more than 1.5 billion birds in resent times – Hikers can help monitor both where the birds are and how well they are thriving in habitats and along migration routes
Hikers observing birds, to help science and biodiversity
Illustration and text Frits Ahlefeldt, Hiking.org

Keywords, citizenScience, citizen science, hiking, biodiversity, nature, scientist, bird life, endangered species, wildlife, observations