Although most spoonbills spend the winter along open muddy coast lines all known breeding sites are on rocky islands.

虽然大部份琵鹭于泥滩越冬，但所有已知的繁殖地都位于岩岛上。

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Open all year round, the Treehotel might attract only the hardiest of souls during the winter as temperatures typically dip to around minus 15 degrees Celsius (5 degrees Fahrenheit).

CNN: Modern design meets nature with Sweden's Treehotel