what is an erosion bird

Based on the search results, there is no such thing as an "erosion bird." The term "erosion bird" appears to be a meme or a hoax that originated on TikTok. It is a series of images and short looping videos that are supposed to depict a previously unseen series of large bird-like creatures. However, there is no scientific evidence to support the existence of such creatures. The term "erosion" also appears in the context of studies on bird diversity and the impact of environmental changes on bird populations.