ホシハジロの潜る様子はまるでカイツブリのよう, The diving behavior of the Common Pochard is similar to that of a Little Grebe
2026年1月5日、ホシハジロとカルガモを比べると体の特徴と餌の取り方が異なる。ホシハジロは潜水ガモと呼ばれる仲間なので潜水して餌をとる。マガモやカルガモなどは淡水ガモと呼ばれる仲間で水面で餌をとったり、逆立ちして水中に首を伸ばし水草を食べる。
ホシハジロの潜水時間は10秒より長く20秒より短かった。潜る様子はまるでカイツブリのようだ。
Comparing the Common pochard and the Spot-billed Duck, their physical characteristics and feeding methods are different. The common pochard is a diving duck, so it feeds by diving underwater. Mallards and spot-billed ducks are freshwater ducks, so they feed on the surface of the water or stand on their heads and stretch their necks underwater to eat aquatic plants.
The diving time of the Common Pochard was longer than 10 seconds but shorter than 20 seconds, and its diving behavior was similar to that of a Little Grebe.
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