To flock to常用来形容人们大批的涌进某处。
　　例句：
　　Thousands of people flocked to the shopping centre when the summer sale started.
　　Youngsters flock to cinemas to watch the latest blockbuster action movies.
　　注意：
　　Birds of a feather flock together的意思是 “物以类聚，人以群分”。
　　例句：
　　Mark's friends are all very wealthy, just like he is. Birds of a feather flock together.
　　常识补充：
　　Starlings fly in their millions and offer spectacular displays during winter. But there are not as many around nowadays. Once a common sight in both urban and rural areas of Britain, starling numbers have dropped by a staggering 92% in woodlands.
　　以往冬季，数以百万计的惊鸟会成群结队地飞来给人们上演一场壮观的景象。但现如今惊鸟数量远不及以往。原本在英国城市和农村很常见的惊鸟在林地的数量骤降92%。

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