Why is the number of "bird's nests" in the chestnut forest increasing? Why are these "bird's nests" so huge? Why are there no birds in the "bird's nests"? In order to understand these situations, reporters recently followed Yu Huiliang, deputy director of the Shennongjia National Park Academy of Sciences, to the chestnut forest to find out.
In a chestnut forest behind the Key Laboratory of Golden Monkey Conservation Biology in Shennongjia National Park, looking up, you can see five or six huge "bird's nests" hanging high on several huge chestnut trees. Yu Huiliang pointed to the "bird's nest" and said that it looked like a bird's nest, but it was actually the traces left by black bears eating chestnuts, which they called "cushions."
Yu Huiliang said that black bears especially like to eat chestnuts and come here in autumn when the chestnuts are about to mature. Chestnuts grow on branches, and if they can't reach them, they break off the branches. Then, after eating the chestnuts on the branch, they sit on the branches, then reach out and break another branch. This cycle forms a large bird's nest, which is called the bear's "cushion."
According to reports, black bears hibernate in winter, so they need to eat a lot of food in summer and autumn to store enough energy for the whole winter. Black bears are omnivores. In addition to animals that are often hunted, high-calorie foods such as nuts can better meet the needs of black bears to increase fat. Therefore, it is easier to see the "cushions" left by black bears on chestnut trees.
(reporters Zhang Ran and Luo Ren)
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