Complex sentence: Soren the Barn Owl nestling happily lives in a tree hollow with his family and Mrs. Plithiver, their nest-maid snake, until he is pushed out of their hollow by his brother, Kludd.
Split into simpler sentences: Soren the Barn Owl nestling happily lives in a tree hollow with his family and Mrs. Plithiver, their nest-maid snake. He is pushed out of their hollow by his brother, Kludd.