Denver-Boulder Metro Area: Birds
This guide contains birds that can be found in the Denver-Boulder Metro Area, including Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas, and Jefferson Counties.
Purple Martin
The Purple Martin (Progne subis) is the largest North American swallow. These aerial acrobats have speed and agility in flight, and when approaching their housing, will dive from the sky at great speeds with their wings tucked.
Barn Swallow
The barn swallow (Hirundo rustica) is the most widespread species of swallow in the world. It is a distinctive passerine bird with blue upperparts, a long, deeply forked tail and curved, pointed wings. It is found in Europe, Asia, Africa and the Americas. In Anglophone Europe it is just called the swallow; in Northern Europe it is the only common species called a ...more ↓
Tree Swallow
The Tree Swallow (Tachycineta bicolor) is a migratory passerine bird that breeds in North America and winters in Mexico, Central America and the Caribbean. It is a very rare vagrant to western Europe.
Violet-green Swallow
The Violet-green Swallow (Tachycineta thalassina) is a small North American swallow.
Bank Swallow
The sand martin (Riparia riparia) or European sand martin, bank swallow in the Americas, and collared sand martin in South Asia, is a migratory passerine bird in the swallow family. It has a wide range in summer, embracing practically the whole of Europe and the Mediterranean countries, part of northern Asia and also North America. It winters in eastern and ...more ↓
Northern Rough-winged Swallow
The Northern Rough-winged Swallow (Stelgidopteryx serripennis) is a small swallow.
Cliff Swallow
The American Cliff Swallow (Petrochelidon pyrrhonota) is a member of the passerine bird family Hirundinidae — the swallows and martins.
