Complex sentence: Excavations in one compound produced eggshell fragments, bird skeletons and traces of wooden perches which led to the conclusion that the community raised scarlet macaws, important in Mesoamerican rituals.
Split into simpler sentences: Excavations in one compound produced eggshell fragments, bird skeletons and traces of wooden perches. Archeologists concluded that the community raised scarlet macaws, important in Mesoamerican rituals.