Speaking from his own experience, Fang Yu-shui says that before he knew his wife was pregnant, one day he went with her to Kuankao to clear grass from the paths. There they heard the hoot of a collared scops owl. After they returned home he took his wife to the clinic for a test, and indeed found that she was pregnant.
以他個人經驗為例，還不知道太太懷孕前，有一天他和太太到觀高砍草，聽到一隻領角鴞（貓頭鷹的一種）在叫，他回去帶太太到醫院檢查，果然已經有孕。