游客来到莫斯科,都会被克里姆林宫大教堂那金光闪闪的圆顶所吸引。如此壮丽的景观是如何保护的呢?这不只是修复工人精湛技术的结果,还因为大教堂的圆顶由两只训练有素的猎鹰在守卫。原来,昂贵的镀金层的主要敌人不是严酷的天气和城市的烟雾,而是普普通通的乌鸦。莫斯科的乌鸦群 Visitors to Moscow will be attracted by the glittering dome of the Kremlin Cathedral. How is this magnificent landscape protected? This is not just the result of restoring the workers’ superb technique, but also because the dome of the cathedral is guarded by two trained falcons. It turned out that the main enemy of the expensive gold-plated layer was not the harsh weather and the smog of the city, but an ordinary crow. Crowd of crows in Moscow