Yes, there is an endangered species of hummingbird. According to the Defenders of Wildlife website, the only hummingbird listed under the Endangered Species Act is the Hook-billed Hermint Hummingbird.
So, you may be wondering, what exactly is the Endangered Species Act? Well, let me explain. Under the Endangered Species Act the United States federal government is required to identify species which are threatened with extinction, identity the habitat that is necessary for their survival and then help protect both. This has two very important purposes: to strive to ensure the health of our natural ecosystems and to try and ensure that these species will still exist for the future generations.