Students in AP Environmental Science examine owl pellets to determine the contents in the owls’ stomachs that it could not digest.  “We are looking for the bones and remains in it to see what it consumes and relate it back to the food chain and the flow of energy,” senior Dulcy Olson said. “It is an actual tactile way to see instead of just looking at a power point.” The students are able to identify the types of bones and substances in the pellets.