Rufous Hummingbird: Identification, Range, and Behavior

Quick Facts

Scientific name: Selasphorus rufus

Length: 2.8 to 3.5 inches, with a wingspan around 4.3 inches

Weight: 2 to 5 grams, and 3 to 4 grams during migration

Range: breeds from Oregon and Idaho north through British Columbia into southeast Alaska; winters in Mexico

Migration: roughly 3,900 miles one way, the longest journey of any bird relative to body size

Longevity record: a female of at least 8 years and 11 months, recaught in British Columbia in 2004

Conservation status: Near Threatened since 2018, and declining sharply

How to Identify a Rufous Hummingbird

The male is the most orange hummingbird in North America. His back and belly are bright coppery rufous, and his throat is a vivid iridescent scarlet-orange, usually set off by a white chest patch below. In poor light the gorget goes dark, as all iridescent gorgets do.

Structurally, look for a small hummingbird with a nearly straight bill and a tail that tapers to a point when folded. The wings are fairly short and fall well short of the tail tip when the bird is perched.

The female and immature birds are greenish above and whitish below. Look for rusty-washed flanks, rusty patches at the base of a green tail, and often a small spot or patch of orange on the throat. That rufous wash on the flanks is the key. It rules out Anna’s and Ruby-throated immediately, since neither shows any orange tones at all.

The Allen’s Problem

This is one of the genuinely difficult identification challenges in North American birding, and it deserves an honest answer rather than a confident one.

For adult males, the back is the shortcut. A male with a solidly rufous or coppery back is a Rufous. A male showing substantial green across the back is likely an Allen’s. The rule of thumb birders use is that if the back is less than half green, you can safely call it a Rufous without seeing the tail.

The complication is that some adult male Rufous Hummingbirds do show green on the back. Once green creeps past the middle of the back, confidence collapses. Separating the two then requires careful inspection of the shape of the spread outer tail feathers, with Allen’s being noticeably narrower and more pointed.

For females and immatures, be honest with yourself. They are very nearly identical, and reliable separation usually requires seeing the spread tail well, something most garden observations simply do not allow. Range helps. Allen’s is restricted to coastal California and southern Oregon in the breeding season, so away from that narrow strip a Selasphorus hummingbird is far more likely to be a Rufous.

For the wider picture of who is who, the field guide to North American species sets out the whole cast.

The Great Migratory Loop

The Rufous Hummingbird’s annual journey is the reason to care about this species even if you never see one.

Birds winter in Mexico and begin moving north as early as January, riding the wave of early blooms up the Pacific Coast. They pass through California between February and April, reach coastal Washington, Oregon and British Columbia by late April and May, and push on to southeast Alaska. That is the northernmost hummingbird breeding range anywhere in the world.

Then, remarkably, they do not retrace their steps. The return journey swings inland and south through the Rocky Mountains, following the late-summer wildflower bloom through mountain meadows at elevations as high as 12,600 feet. The whole pattern forms a vast clockwise loop around western North America, timed to catch flowers at their peak in each region.

Some individuals cover roughly 3,900 miles in a single direction, from Mexico to Alaska. That means as much as 8,000 miles in a year for a bird under four inches long. The mechanics of how hummingbirds achieve journeys like this are covered separately.

Rufous are also notable wanderers. They have more vagrant tendencies than any other North American hummingbird, and strays turn up east of the Rockies each autumn to the delight of birders.

Behavior: The Feistiest Hummingbird

Rufous Hummingbirds are famously, relentlessly aggressive. A single bird will attempt to monopolise a feeder and chase off every other hummingbird that approaches, including species considerably larger than itself. On migration they will muscle into established territories and simply take over.

This has a practical consequence in the garden. If a Rufous shows up and your other hummingbirds vanish, you have not lost them. They have been evicted. The remedy is to put out several feeders spaced well apart, ideally out of sight of one another, so that no single bird can guard them all. The nectar recipe and feeder guide covers placement in detail, and the sounds that go with all this chasing are worth learning too.

Habitat and Breeding

Rufous breed in open or shrubby areas, forest openings, yards and parks, from sea level up to about 6,000 feet, favouring the cool, damp Pacific Northwest. Their winter habitat in Mexico is quite different: oak, pine and juniper woods between 7,500 and 10,000 feet, along with shrubby areas and thorn forest.

As with all hummingbirds, the female alone builds the nest, incubates and raises the young. She builds up to about 30 feet high in a conifer or a deciduous tree, using soft plant down held together with spider web. The outside is decorated with lichen, moss and bark. The finished cup is about two inches across.

She lays two or three eggs and raises a single brood. Incubation runs 15 to 17 days, and the young leave the nest 15 to 19 days after hatching. The full breeding cycle is covered separately.

Nectar comes from columbine, gilia, penstemon and paintbrush, and the protein comes from insects, mainly gnats, midges and flies taken from the air, plus aphids taken from plants.

A Species in Decline

This is the part that matters.

The 2025 State of the Birds report lists the Rufous Hummingbird as an Orange Alert Tipping Point species. That means it has lost more than half its population in the past fifty years and the decline has accelerated within the past decade.

The Breeding Bird Survey puts the rate at 2.2 percent a year between 1968 and 2023, which compounds to a cumulative decline of 72 percent. Partners in Flight estimates 22 million birds remain and scores the species 14 out of 20 on its Continental Concern Score. The IUCN uplisted it from Least Concern to Near Threatened in 2018.

The causes are the familiar ones. Loss of breeding habitat is concentrated precisely in the Pacific Northwest, where the species is most abundant. Alongside it, climate change is disrupting the fine timing between the birds’ arrival and the flowering they depend on. A bird whose entire strategy is to chase blooms across a continent is unusually exposed when those blooms shift.

The good news is that the things which help are ordinary and local: native nectar plants, clean feeders, no pesticides and protected habitat. The article on threats to hummingbirds and how you can help covers what makes a difference.

Attracting Rufous Hummingbirds

If you live along their migratory route, the key is timing. Rufous arrive early, often before much is in bloom, so have a clean feeder out ahead of them. In the Pacific Northwest, red-flowering currant (Ribes sanguineum) is the standout native, because its bloom is timed almost exactly to the Rufous arrival, and salmonberry does a similar early-season job.

Then space your feeders apart, because one Rufous will otherwise guard the lot. The guide to attracting hummingbirds covers planting and placement, and when to put feeders out and take them down covers the timing where you live.

Frequently Asked Questions

How do I identify a Rufous Hummingbird?

Males are bright coppery orange on the back and belly with a vivid scarlet-orange throat. Females and immatures are green above with rusty flanks, rusty tail patches, and often an orange throat spot.

How do I tell a Rufous from an Allen’s Hummingbird?

For adult males, a solidly rufous back means Rufous, while substantial green on the back suggests Allen’s. Females and immatures are nearly identical and often cannot be separated without a clear view of the spread tail.

How far does a Rufous Hummingbird migrate?

Roughly 3,900 miles each way, as much as 8,000 miles annually, in a clockwise loop north along the Pacific Coast and south through the Rockies. Measured in body lengths it is the longest migration of any bird.

Which hummingbird breeds the farthest north?

The Rufous. It breeds into southeast Alaska, the northernmost hummingbird breeding range in the world.

Why did all my hummingbirds disappear when a Rufous arrived?

They were driven off. Rufous are exceptionally aggressive and will monopolise a feeder. Space several feeders apart, out of sight of each other, so one bird cannot guard them all.

How long do Rufous Hummingbirds live?

The oldest on record was a female of at least 8 years and 11 months, recaught during banding in British Columbia in 2004. Most live nowhere near that long.

Are Rufous Hummingbirds endangered?

Not endangered, but listed as Near Threatened since 2018 and declining fast. Breeding Bird Survey data show a 2.2 percent annual decline from 1968 to 2023, a cumulative loss of 72 percent. The 2025 State of the Birds report flags it as an Orange Alert Tipping Point species.

Conclusion

There is something almost absurd about the Rufous Hummingbird. Less than four inches of bird, weighing about as much as a nickel, making an annual circuit of a continent and picking fights with everything it meets along the way. That it has lost nearly three quarters of its population in a single human lifetime is worth sitting with. The route it flies passes through a great many gardens. What grows and hangs in those gardens is one of the few parts of its journey that ordinary people can improve.