灰喜鹊和喜鹊一样,千百年来被人们视为吉祥之鸟,但和喜鹊一样,它们也是非常凶猛和极具攻击性的。一说成语“鸠占鹊巢”里的鹊指的就是灰喜鹊。灰喜鹊喜食松毛虫等数十种农林害虫。据统计,一只灰喜鹊一年可消灭松毛虫15000条左右,可以保护一亩松林免受其害。南开大学从2001年秋天开始连续五年对校园基础设施进行改造,其中包括校园环境的绿 Magpies, like magpies, have been considered auspicious birds for centuries, but like magpies, they are also very ferocious and highly aggressive. An idiom “dove magpie nest” in the magpie refers to the gray magpie. Gray magpie eater eating dozens of species of agricultural and forestry pests. According to statistics, a gray magpie can eliminate about 15,000 pine caterpillars a year, can protect a mu of pine forest from harm. Nankai University in the fall of 2001 for five consecutive years to transform the campus infrastructure, including the green campus environment