Colorado Hummingbirds: Rufous Small flying sunsets, rufous hummingbirds! Rufous hummingbirds in Colorado are territorial, so other flying gems may have trouble accessing your feeders if one moves in. (Try these techniques for territorial hummingbirds.)
Rufous hummingbirds only visit Colorado during migration, so don't worry about them taking over your yard. The western part of the state sees them then.
Broad-Tailed Hummingbird For breeding season, these charming little fliers stay in most of western Colorado. A small northern region of the state may also see them, though this is rare.
The broad-tailed hummingbird's pink-red gorget and bright green feathers distinguish it. They may look like the ruby-throated hummingbird, but their ranges are different. Broad-tailed hummingbirds appear like ruby-throats in western Colorado!
Black-Chinned Hummingbird Black-chinned hummingbirds spend summer in the western half of Colorado, although they’re uncommonly spotted farther east. They’ll come to sugar water feeders in backyards
so if you’re looking to bring one to your yard, you’ll want to make sure you’re choosing the best hummingbird feeder—and keeping it clean. If you’re really lucky, one might even nest in your backyard.
Calliope Hummingbird Look for Calliope hummingbirds during migration season, not every year. Technically, Colorado has no range. However, they can visit the state on their way north to their Pacific northwest breeding sites or south for the winter.
You'll see one—you may have to squint. The smallest North American bird is the calliope hummingbird! Male adults feature pink gorgets, iridescent green backs, and white breasts.