If a birdbrain like me can tell this isn’t a real owl, so can birds. June 14, 2018 Gail Batt A tree swallow watched me walk a trail in a park. Yarrow was formerly used to break a fever by increasing perspiration, to treat hemorrhaging and as a poultice for rashes. A gray catbird’s giddyup. A catbird signals a turn. A tree with snowy flowers, big leaves and dangling seed pods. It’s the northern catalpa.