eBird Mobile is the easy way to record the birds you see in the field and link these observations with eBird, the global online database of bird records used by birders around the world. This free resource makes it easy to keep track of what you see, while making your data available for research, education and conservation. eBird Mobile is the only app that passes information directly from iOS and Android devices to your eBird account on the internet.

Learn more and download the app at https://help.ebird.org/customer/portal/articles/1848031-ebird-mobile-apps-overview