翻译一篇短文。
以下是一篇关于观鸟的短文：
是什么吸引人们去观察鸟类，研究鸟，创立庞大的关于鸟类的分类学，甚至成立了专门的保护鸟的组织？一部分原因是鸟类的多样性和颜色鲜艳的羽毛，再加上它们的智能。另一部分原因则是鸟类正在迅速减少，人们意识到我们需要保护他们这一事实。不管是什么原因，鸟类成为了人类的研究对象，我们的知识和理解也在不断增长。
What attracts people to observe birds, study them, establish a vast classification of bird species, and even form dedicated organizations for protecting birds? Part of the reason is the diversity and brightly colored feathers of birds, coupled with their intelligence. Another reason is that bird populations are rapidly declining, and people realize the need to protect them. Whatever the reason, birds have become the subject of human research, and our knowledge and understanding of them are constantly growing.