This world would not be the same without birds.

没有了鸟类，世界将完全不同。

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Think of your woods and orchards without birds!

树林里，果园里，鸟儿都绝迹！

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How is it that a three-year old knows how to play Angry Birds without needing a single adult to teach them?

FORBES: How Gamification Kills Classroom Training

"We've always had a concern that the access can only go in without disturbing the birds and there are ways in which that can be done, " he said.

BBC: NEWS | UK | Scotland | Tayside and Central | Clashes over loch access project

Experts urged Chinese health authorities to keep testing healthy birds, saying the H7N9 virus can infect birds without causing disease, making it harder to detect than the H5N1 bird flu virus that is more familiar to Asian countries.

NPR: China Kills Market Birds As Flu Found In Pigeons