Two Blue Herons 两只蓝色的苍鹭
Krebs has discovered that great blue herons look up more often when in smaller flocks than when in larger ones, solely as a consequence of poor feeding conditions.
克雷布斯发现,大蓝鹭在较小的群体中比在较大的群体中更容易抬头,这完全是由于恶劣的饲养条件造成的。
Blue Herons along with Bald eagles can also be seen.
鱼鹰和蓝鹭一起白头鹰也可以看出。
Osprey and Blue Herons along with Bald eagles can also be seen.
鱼鹰和蓝鹭一起白头鹰也可以看出。
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