The present invention relates to a bird's foot ring, which comprises: a ring body, which is provided with a set of holes from the top to the bottom, and the ring body comprises a top ring surface, a bottom ring surface, an inner ring surface and an outer ring surface. Further, the outer annular surface is slightly inwardly concave to form a shallow arc groove； and a plurality of identification diagrams are provided, and each identification diagram is disposed on the circumferential surface of the ring body, and is formed into a hollow shape from the inner annular surface to the outer annular surface. It is connected with the sleeve hole； wherein the identification pattern is arranged in a hollow manner, so that the outer ring surface is subjected to friction to maintain the display of each identification icon, and the target of clear identification is achieved.本創作一種鳥腳環，其包括：一環體，其由頂至底設有一套孔予以貫穿，又該環體包含有一頂環面、一底環面、一內環面及一外環面，又該外環面係向內略微弧凹形成一淺弧槽；及複數辨識圖示，各辨識圖示係設置於環體的周面，並且從內環面貫穿至外環面形成鏤空狀而與套孔相連通；其中，透過各辨識圖示以鏤空狀的設置方式，使其外環面受到摩擦下可維持各辨識圖示的顯示，並達到清楚辨識之標的。
