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1
安全存放垃圾,让乌鸦无法接触。乌鸦能轻而易举地啄破塑料垃圾袋,在垃圾里翻找食物。垃圾箱不能装得太满,否则就算垃圾袋露出一小部分,乌鸦也能将它弄破。那种能锁紧盖子的垃圾桶最为安全。一旦乌鸦尝到甜头,就会每天回到同样的地方觅食,所以垃圾一定要遮盖得严严实实。[2]X
可靠来源
The Humane Society of the United States
前往来源
把所有垃圾桶盖好并上锁。
用绳子将垃圾桶的把手固定到插在地上的木桩,避免垃圾桶被撞倒。
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2
把堆肥装在容器里或者盖起来。乌鸦是杂食动物,任何食物残渣都不放过。所以,用密闭容器存放食物残渣就显得尤为重要。堆肥是可持续性的,可以很好地解决剩余食物。然而,露天摆放的堆肥对乌鸦具有很大的吸引力。如果你想制作堆肥,又不想招来乌鸦,一定要把堆肥盖起来,或者放在垃圾桶里。只要能盖好堆肥,你就能放心地用庭院里的垃圾制作堆肥了。[3]X
可靠来源
The Humane Society of the United States
前往来源
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5
在初冬时节,用声音驱赶飞来的乌鸦。乌鸦会进行迁移,通常在初冬选择栖息地。如果你不想整个冬天和乌鸦做邻居,就大声吆喝,将刚刚飞来的乌鸦赶走,让它们无法安家落户。[8]X
可靠来源
Penn State Extension
前往来源
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1
用仿真动物震慑乌鸦。把从万圣节用品店买来的假乌鸦倒挂起来,并将乌鸦的翅膀展开。见到死去的同伴,真乌鸦便不会靠近了。你也可以用假的大角枭或蛇代替假乌鸦,但这种方法的效果只能持续很短一段时间。乌鸦会记住机械动物的形态,最终意识到这些并不是真的动物。[10]X
可靠来源
The Humane Society of the United States
前往来源
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3
用能够反光的物体吓走乌鸦。[12]X
可靠来源
The Humane Society of the United States
前往来源
乌鸦见到能移动的闪光物体会感到害怕。你可以购买驱鸟胶带吓走乌鸦。把亮闪闪的胶带系在杆子上,插遍整个院子,或者沿着院子四周插上杆子,再把驱鸟胶带缠起来穿在杆子之间的绳子上。乌鸦会逐渐克服威胁物,所以你必须定期移动胶带。其它可以震慑乌鸦的闪光物体有:
反光胶带
用绳子垂直悬挂的旧CD光盘
铝制烤派盘。任何闪光的物体都可以放在院子里吓唬乌鸦。
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4
用巨大的噪音吓走乌鸦。乌鸦不喜欢吵闹的声音,比如爆炸声、很大的敲击声或警报声。用噪音驱赶乌鸦虽然有效,但不适用于居住在城市的人。每次见到乌鸦,你就要发出噪音,将它们赶走。建议登录鸟控公司的网页,找到乌鸦天敌的叫声或者乌鸦求救时的叫声。把这些声音录下来,在乌鸦出现的时候播放,这样乌鸦就不敢靠近了。下面的噪音都能驱赶乌鸦: [13]X
可靠来源
The Humane Society of the United States
前往来源