This video from England is called Little Egret at Leighton Moss.
According to recent Dutch research, great egrets are better at surviving harsh winters in the Netherlands than little egrets.
This may be because little egrets eat fish and other water animals, which are hard to reach under ice. Great egrets, however, eat land animals like rodents as well.
Grey herons had problems in harsh winters, leading to declines in numbers.
The complete report is here.
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