Broad-tailed hummingbirds occupy the mountainous forests of Guatemala, Mexico, and the Western United States. They typically are found in the Rocky Mountain region during the breeding season ...

What does a flower look like to a hummingbird? New research says it’s probably nothing like what humans perceive because ...

They gradually spread across dozens of states east of the Rocky Mountains throughout the spring. Advertisement By early April, hummingbirds are expected to arrive in areas from Virginia and North ...

In 1973, as a graduate student at the Rocky Mountain Biological Laboratory near Crested Butte, Inouye was working with hummingbirds and bumblebees. He wanted to know what flowers the two creatures ...