While most birds flee the Treasure Valley once cold weather hits, one hummingbird stands out — not only for its toughness during the winter months, but also for its striking color. Anna’s hummingbirds ...

Bill shape affects how efficiently a hummingbird feeds and how it competes with other hummingbirds. Because of humans, they ...

Anna’s hummingbirds, named after Anna Masséna, duchess of Rivoli, are native to western coastal regions of North America. The mixed habitats of the UC Santa Cruz Arboretum and Botanic Garden provide a ...

There’s no mistaking the dizzying display of a hummingbird’s wings as it zips around from flower to flower looking for nectar ...

A new study suggests that Anna's Hummingbirds in the western United States are not only keeping up with human influence on their habitat, they're thriving. According to a recent study in Global Change ...

This is a preview. Log in through your library . Abstract During range expansions, species can experience rapid population growth if changes in climate or interspecific interactions remove limits on ...

The profusion of hummingbird feeders in California homes has not only allowed some hummingbirds to expand their range, but has also altered the shape of their beaks. Native to Southern California, ...