What was the most common item you found in your owl pellet? Why do you think there were so many of this item?

As an AI language model, I do not have personal experiences or findings. However, the most common item found in owl pellets is typically small rodent bones, such as those from mice or voles. There may be many of these bones in owl pellets because rodents are a common prey item for many owl species. Rodents are also abundant in many environments, which may make them an easy target for hunting. Additionally, owls may eat multiple rodents in a single meal, which can contribute to a higher number of rodent bones in their pellets.