The Bone Buzzards fly around, swooping down to attack the player and then flying away. They are agile and small, making it difficult to hit them with normal weapons. However, they are very vulnerable to alchemy; due to their negative alchemy defense, alchemy does double damage against them. Alchemy also has the advantage that they are unlikely to avoid it. Crush and Hard Ball are very effective.
The Bone Buzzard doesn't drop much money, but gives a good amount of experience for when it is encountered. However, using them to level grind is ill-advised due to the danger of the Desert of Doom.