夜间哪些鸟儿在活动？
Which birds are active at night?
是它，就是它，夜鹭，白天常隐蔽在沼泽、灌丛或林间，晨昏和夜间活动；栖息和活动于平原和低山丘陵地区的溪流、水塘、江河、沼泽和水田地上附近的大树、竹林。
It is it, it is it. Night herons often hide in swamps, shrubs or forests during the day, and move in the morning and dusk and at night; It inhabits and moves in streams, ponds, rivers, swamps and paddy fields in plain and low mountain and hilly areas, and trees and bamboo forests nearby.
夜鹭夜出性，喜结群，常成小群于晨、昏和夜间活动，白天结群隐藏于密林中僻静处，或分散成小群栖息在僻静的山坡、水库或湖中小岛上的灌丛或高大树木的枝叶丛中，偶尔也见有单独活动和栖息的。
Night herons come out at night and like to form groups. They often move in small groups in the morning, dusk and at night. They form groups and hide in secluded places in the dense forest during the day, or disperse into small groups to inhabit in secluded hillsides, reservoirs or shrubs on small islands in the lake or branches and leaves of tall trees. Occasionally, they can also move and inhabit alone.
夜鹭主要以鱼、蛙、虾、水生昆虫等动物性食物为食。通常于黄昏后从栖息地分散成小群出来，三三两两于水边浅水处涉水觅食，也单独伫立在水中树桩或树枝上等候猎物，眼睛紧紧地凝视着水中。清晨太阳出来以前，则陆续回到树上隐蔽处休息。
Night herons mainly feed on animal food such as fish, frogs, shrimp and aquatic insects. They usually come out in small groups from their habitat after dusk, wading in shallow water by the water in twos and threes, or standing alone on tree stumps or branches in the water waiting for prey, staring closely at the water. Before the sun comes out in the morning, they return to the shelter of the tree to rest.