also known as the Bearded Vulture or the Lammergeyer, the lammergeier is a species of old world vulture found on high mountains in Europe and Asia (such as the Alps and Himalayas). They are a fairly big bird as adults can grow up to 49 in long and have a wingspan of 9 ft! One of the most interesting characteristics about this bird other than it’s size is its dietary habits, as like most vultures they feed on dead animals, but these birds almost exclusively eat bone marrow (making it the only bird to do so). now you might be thinking bone marrow is hard to get too and birds have no teeth so how does the lammergeier feed on said marrow, well the lammergeier has devised a clever plan to extract the marrow by using its alpine environment. the bird simply flies up to around 100-500 feet and drops the bone until it cracks and exposes the marrow which it then eats (they also do this with tortoises).