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The Anna's Hummingbird, scientifically known as _Calypte anna_, is a vibrant and active bird species found in the Mule Mountains of Bisbee, Arizona. This species is particularly notable for its dazzling plumage and unique behaviors. It has adapted remarkably well to the varied landscapes of the region, thriving in both natural and urban environments.

Physical Description

The Anna's Hummingbird is a small bird, typically measuring about 3.9 to 4.3 inches in length. It has a compact, stout body and a relatively short, straight bill. The most striking feature of the Anna's Hummingbird is its iridescent plumage. Males display a brilliant, shimmering emerald green back and a rose-red throat, which can appear dark in low light. Females and juveniles are less colorful, with a green back and a greyish underbelly, and have a more subtle red throat marking.

Habitat and Distribution

In Bisbee's Mule Mountains, these hummingbirds are found in a variety of habitats, including open woodlands, gardens, and even residential areas. They are well-suited to the arid climate and can be seen flitting around flowerbeds and feeders. The Anna's Hummingbird is a year-round resident in this region, unlike many other hummingbird species that migrate.

Behavior and Diet

Anna's Hummingbirds are known for their agility and speed. They can hover in mid-air by rapidly flapping their wings, an average of about 50 times per second. Their diet primarily consists of nectar from flowers and flowering trees. They are also known to eat insects and spiders, especially during breeding season, for protein.


The breeding season for the Anna's Hummingbird typically spans from December through June, which is notably longer than most other North American hummingbirds. The female is solely responsible for nest building and raising the young. Nests are small, cup-shaped structures made from plant fibers and spider webs, often located in trees or shrubs.

Conservation Status

Currently, the Anna's Hummingbird is listed as a species of least concern. However, like many wildlife species, they face threats from habitat loss and environmental changes. Conservation efforts in the Mule Mountains and surrounding areas focus on preserving natural habitats and promoting bird-friendly gardening practices.

Significance in Bisbee

In Bisbee, Arizona, the Anna's Hummingbird has become a symbol of the vibrant natural life in the Mule Mountains. Its presence enhances the local biodiversity and adds to the region's natural beauty, making it a favorite among birdwatchers and nature enthusiasts.

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