Another experiment showed that house sparrows consumed less red food after they observed others eating red food that was treated so as to be noxious.
另一项实验表明，家养麻雀在观察到其他麻雀吃红色的食物以致有毒后，会吃更少的红色食物。
"Tweet tweet! Tweet tweet!" Early in the morning, sparrows were sitting down in front of the hen house and chattering.
“叽叽！叽叽！”清晨，麻雀们坐在鸡舍前面，喋喋不休地说。
"Tweet tweet! Tweet tweet!" Early in the morning, sparrows were sitting down in front of the hen house and chattering.
“叽叽！叽叽！”清晨，麻雀们坐在鸡舍前面，喋喋不休地说。
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