Thanks to the Cornell Ornithology Laboratory's Bird Cam Project. Here is documented a new species appearance in the United States. The following is excerpted from the Bird Cam Project's website.
The first-ever Amethyst-throated Hummingbird spotted in the United States spent the afternoon sipping from the Perky-Pet feeder on our West Texas Hummingbird Cam, making multiple visits throughout the evening. The mega-rarity was first spotted by the cam host, who also documented its presence with still images.
Watch live at http://AllAboutBirds.org/TexasHummers
The West Texas Hummingbird Feeder Cam is nestled in the mountains outside Fort Davis, Texas, at an elevation of over 6200 feet. This site hosts a total of 24 Perky-Pet® Grand Master hummingbird feeders, and during peak migration can attract hundreds of hummingbirds from a dozen species that are migrating through the arid mountains.
For the past 10 years, researchers from West Texas Avian Research have been banding hummingbirds at this site and others throughout the Trans-Pecos region of Texas to study the status and distribution of hummingbirds throughout the poorly known region.
The active banding of hummingbirds continues (off camera) at this site in the Davis Mountains, and from time to time you may hear researchers working in the background. Some common species in you may hear vocalizing include Western Scrub Jays, Acorn Woodpeckers, and Canyon Wrens (among others).
Thanks to West Texas Avian Research for their enthusiasm and support for hosting the camera at this remote research site, and to cam sponsor Perky-Pet®."