/ Children’s / Teenage general interest# Birds / Children’s / Teenage general interest# Ecosystems / Children’s / Teenage general interest# Plants and trees / Curriculums / Cynthia Rylant / decomposition / douglas fir tree / ecosystem / Habitat / hummingbirds / JUVENILE NONFICTION / Animals / Birds / JUVENILE NONFICTION / Science & Nature / Environmental Science & Ecosystems / JUVENILE NONFICTION / Science & Nature / Trees & Forests / life cycles / log / lola m. schaefer / Natural history (Children's/Teenage) / natural process / Nature / nurse logs / Preservation / Science / Seeds / tree lady / trees / when a tree falls in the forest / Wildlife / Wildlife (Children's / Teenage) / woodpeckers