Anna’s Hummingbird (Calypte anna): Backyard Guide & Identification | BackyardBird.org
Wild Bird Atlas • North America

Anna’s Hummingbird

Male Anna's Hummingbird in flight showing rose-pink gorget (Source: Wikimedia Commons)
The Flying Male
Rose Gorget • Year-Round • Wikimedia Commons
Anna's Hummingbird Video Study 1
▶ Video 1
▶
Watch: Mini-Documentary (Video 1)
Male Anna's Hummingbird displaying iridescent rose-pink crown and gorget (Source: Wikimedia Commons)
The Rose Helmet
Crown + Gorget • Light Trick • Wikimedia Commons
Anna's Hummingbird Video Study 2
▶ Video 2
▶
Watch: Facts & Sounds (Video 2)
Female Anna's Hummingbird gathering plant down for nesting material (Source: Wikimedia Commons)
The Nest Builder
Plant Down • December Start • Wikimedia Commons
Female Anna's Hummingbird incubating eggs on lichen-covered nest (Source: Wikimedia Commons)
The Winter Nest
Two Eggs • Lichen & Silk • Wikimedia Commons
Young male Anna's Hummingbird feeding at a red backyard nectar feeder (Source: Wikimedia Commons)
The Feeder Regular
4:1 Sugar Water • All Winter • Wikimedia Commons

Anna’s Hummingbird (Calypte anna): Complete Identification, Feeder Guide & Winter Nectar Handbook

Written by Avian Biology Editorial Team • Updated: October 2026 • Verified Backyard Field Data • Regional Hub: Featured in the Louisiana Backyard Birds Guide
Field Summary

Quick Answer: How to Attract & Identify Anna’s Hummingbirds

The Anna’s Hummingbird (Calypte anna) is the stocky, big-headed hummingbird of the Pacific Coast — and the only hummingbird that stays all winter from British Columbia to Baja. The male wears a rose-pink helmet (crown plus throat) that blazes in sunlight; the female is green and gray with a small rose patch on her throat. To attract them: keep a red feeder of 4:1 white-sugar water up year-round — and keep it unfrozen in cold snaps — and plant winter bloomers like manzanita and flowering currant. It shares West Coast yards with the Bushtit and the California Scrub-Jay.

Species Physical Profile & Morphometrics

Anna’s Hummingbird is a medium-sized, stocky hummingbird with a relatively big head, a straight black bill, and a short, broad tail that extends past the wingtips at rest. Both sexes are bronze-green above and grayish below; what separates them is how much of the head can catch fire with color.

The identification formula: stocky body + short tail + (on the male) a whole-head rose-pink flash + a scratchy, ongoing song from an exposed perch. The look-alikes along the coast are the Costa’s Hummingbird (male’s purple gorget flares into long side “mustaches,” crown smaller) and the Allen’s and Rufous Hummingbirds (orange-flanked, with a gorget that stops at the throat — never covering the crown). If a hummingbird is at your West Coast feeder in January, it is an Anna’s.

Essential Morphometric Field Marks:

  • Body Length & Mass: about 3.9 to 4.3 inches (10–11 cm) and 0.1 to 0.2 ounces (3–6 grams) — noticeably bulkier than the Ruby-throated Hummingbird of the East.
  • Wingspan: about 4.7 inches (12 cm); hovering wingbeats run near 50 per second, with the same figure-eight shoulder rotation that lets hummingbirds fly backward.
  • Bill Structure & Color: A straight, slender black bill, medium-length for a hummingbird — built for tubular flowers and feeders alike.
  • Color Pattern: The male’s entire crown and gorget are rose-pink iridescent — the only North American hummingbird whose color helmet covers the whole head. The color is structural: tilt the light and it vanishes into gray-brown.
  • Male vs. Female: The female is green above, gray below, usually with a small patch of rose feathers at the center of the throat — never a full gorget — and white tips on the outer tail feathers.
The Male

The pink-helmeted show-off: rose crown plus gorget, grayish-green belly. He sings a scratchy warble from an exposed perch for minutes at a time, then seals the performance with a 130-foot climb and a 60-mph dive that ends in a loud tail-feather chirp.

The Female

The winter architect: quietly green-and-gray with a rose-spotted throat. She alone builds the lichen-covered nest — often starting in December — lays 2 eggs, incubates about two and a half weeks, and raises the chicks solo, sometimes two or three broods a season.

Anna’s Hummingbird Vocalization Guide (3 Field Recordings)

Anna’s is the songbird of the hummingbird world — one of the few North American species with a true, learned song: a long, scratchy, buzzy warble that goes on for minutes. Add the explosive tail-chirp at the bottom of the courtship dive and the sharp “tik” chips, and you have a year-round backyard soundtrack. All three recordings below are real field audio hosted on Wikimedia Commons — no simulations. For a deeper library, browse xeno-canto: Anna’s Hummingbird.

1. The Dive Display

Display flight with the mechanical tail-chirp
A male in display flight above a coast live oak in an open field — listen for the loud squeak at the start of the cut: that is the mechanical sound of air through the tail feathers at the bottom of the 60-mph dive, not a vocalization at all. Recording: Jonathon Jongsma (XC109651) via Wikimedia Commons, CC BY-SA 3.0.

2. The Chaparral Song

The full scratchy warble from a perch
Over a minute of the male’s true song — the jumbled, squeaky, buzzing warble delivered from a trailside perch in chaparral foothills. This is the sound that fills West Coast yards from December through spring. Recording: Jonathon Jongsma (XC109852) via Wikimedia Commons, CC BY-SA 3.0.

3. The Freeze Survivor

Singing again after sub-freezing nights
A suburban male singing from a bush between two houses after surviving several sub-freezing nights — proof of the cold-hardiness that lets this species winter farther north than any other hummingbird. Recording: Bushman (XC157666) via Wikimedia Commons, CC BY-SA 3.0.

Habitat, Range & the Human Landscape

Anna’s Hummingbird owns the Pacific slope: coastal scrub, chaparral, oak woodland, city parks, and above all gardens — anywhere flowers bloom and a feeder hangs. It is more urban-tolerant than any other western hummingbird, thriving from San Diego suburbs to Seattle backyards.

Anna's Hummingbird North American range map (Source: Wikimedia Commons)
Green: Year-Round (Breeding & Wintering) • Blue: Breeding Range. Source: Wikimedia Commons (Cephas, CC BY-SA 3.0).

The Coast That Never Loses Its Hummingbirds

The green strip tells the story: year-round along the entire Pacific Coast, with breeding (blue) pushing north to Vancouver Island and inland into Arizona. A century ago this bird bred only in southern California and Baja — feeders and winter-blooming garden plants carried it to British Columbia, one of the great range expansions in North American birding. A few wanderers turn up as far east as the Gulf Coast in winter.

Backyards score best with a clean feeder kept up all year, winter-blooming shrubs, and a mister for bathing. Because the birds never leave, the feeder you hang in November matters more than the one you hang in May.

Seasonal Advisory: Expect males singing and dive-displaying from December through spring, nesting as early as December–January (often two or three broods into early summer), and feeder traffic spiking during cold snaps — keep nectar unfrozen: bring feeders in overnight below freezing, or rotate a warm spare each morning.

Backyard Behavioral Patterns & Social Dynamics

Anna’s Hummingbird is the year-round engine of the West Coast yard — a singer, a stunt pilot, and a cold-weather survivor. Four behaviors explain most backyard encounters:

🎤 The Singing Hummingbird

Most hummingbirds only chip and chatter — the male Anna’s sings a true, learned song: a scratchy, buzzy warble that can run for minutes from a bare twig or wire. In coastal neighborhoods it is a genuine dawn-chorus singer, starting in the dark weeks of December.

🤿 The 60-mph Dive

The courtship display is physics made feathers: the male climbs about 130 feet (40 m), then plummets at up to 60 mph — covering some 385 body-lengths per second, the fastest known maneuver of any vertebrate relative to size — and pulls out with an explosive chirp made by air through his tail feathers.

❄️ The Freeze Survivor

On freezing nights an Anna’s drops into torpor — heart rate plunging from over 1,000 beats per minute to a fraction of that — then warms back up at dawn and heads straight for the feeder. It is the trick that lets a tropical family winter in Vancouver.

🏙️ The City Colonist

In the 1930s this bird barely reached San Francisco; today it breeds to British Columbia and winters through most of that range. Ornamental gardens, eucalyptus, and above all year-round sugar-water feeders carried it north — one of the clearest cases of backyard birders redrawing a species’ map.

Problem: “The Feeder Froze Overnight, a Bully Guards It All Day — and in Summer the Nectar Spoils Before I Refill It. Can I Fix That?”

The three most common Anna’s Hummingbird frustrations all have proven answers:

First, the frozen feeder: Anna’s needs dawn calories most on the coldest mornings, so bring the feeder in overnight and hang it back out at first light, or rotate two feeders — one thawing inside, one outside. Wrapping the reservoir with holiday lights or mounting a low-wattage heat lamp nearby also works; never add anything to the nectar itself. Second, the resident bully: a dominant male will guard one feeder all day — the fix is a second feeder around a corner or on another side of the house, out of his sightline. Third, spoiled nectar: sugar water ferments fast — dump, scrub, and refill weekly, and every 2–3 days in hot weather, using hot water and a bottle brush with an occasional 10% bleach rinse for black mold. Solve these three and your yard can hold Anna’s Hummingbirds all twelve months of the year.

Method 1: Mix & Serve Perfect Nectar

Design for a year-round resident that depends on you most in winter:

  1. The 4:1 Recipe

    Mix 1 part plain white sugar to 4 parts water — ¼ cup of sugar per 1 cup of water — stirred until clear (brief boiling helps it dissolve; cool before filling). This matches the sweetness of the wildflower nectar hummingbirds evolved on.

  2. Never Red Dye, Never Honey

    Skip red food coloring entirely — the red parts of the feeder itself are all the advertising needed. Honey is dangerous: it grows a fungus that is fatal to hummingbirds. White sugar only — no brown sugar, no raw sugar, no sweeteners of any kind.

  3. Hang It Where Winters Stay Mild

    Hang the feeder 5–6 feet up in light shade, near shrubs where the birds can perch between sips. In cold climates, a spot sheltered from wind and catching morning sun thaws nectar faster and gives torpid birds an easier first meal.

  4. Clean on a Schedule — Even in Winter

    Empty, scrub, and refill every week — every 2–3 days in hot weather — and keep the routine through winter, because a year-round bird never stops visiting. A weekly 10% bleach rinse (rinsed thoroughly) keeps black mold out of the feeding ports.

Method 2: Plant a Winter-Blooming Buffet

Feeders win the visit; winter flowers hold the territory:

  1. Bloom When Nothing Else Does

    The secret to Anna’s is winter bloom: manzanita, flowering currant (Ribes), hummingbird sage, and winter-flowering salvias all open while the rest of the garden sleeps — exactly when a resident hummingbird needs them most.

  2. Fill the Rest of the Calendar

    Layer in spring-to-fall tubes — penstemon, fuchsia, coral honeysuckle, bee balm, and cape honeysuckle — so something is blooming in every month. Coastal yards that run this relay hold the same birds for years.

  3. Leave the Cobwebs and the Fluff

    A female builds her December nest from spider silk and plant down — willow fluff, dandelion clocks, seed heads gone soft. Leave a few cobwebs under the eaves and a corner of the garden untrimmed through fall, and she may nest within view of your window.

  4. Skip the Pesticides, Add a Mister

    Hummingbirds need tiny insects and spiders for protein — nectar alone cannot raise chicks — so a pesticide-free garden feeds them twice. A mister or dripper on foliage gives them the fine spray they prefer for bathing, in every season.

Tool Solution: Recommended Hardware for Anna’s Hummingbirds

Equipment matched to a year-round resident facing winter cold and summer heat:

Primary Feeder

Red Hummingbird Feeder (with Ant Moat)

A red feeder with a built-in ant moat and bee-proof ports that comes apart easily for scrubbing — the single most-used piece of equipment in a West Coast yard, twelve months a year.

  • • Food: 4:1 white-sugar water, no dye, no honey
  • • Style: Easy-clean reservoir, ant moat, bee guards
  • • Routine: Scrub and refill weekly, year-round
Freeze Insurance

Spare Feeder + Feeder Warmer

A second feeder lets you rotate — one thawing indoors, one serving outside — and a low-wattage warmer or string of holiday lights keeps nectar liquid through hard freezes. The spare also breaks a bully’s monopoly when hung out of his sightline.

  • • Winter: Rotate feeders at dawn on freezing days
  • • Extras: Feeder warmer or sheltered mount
  • • Bonus: Second station ends “hummer wars”
Water & Bathing

Mister or Shallow Bird Bath

Hummingbirds bathe in fine spray and on wet leaves rather than deep pools — a mister aimed at foliage, or a bath with a very shallow edge, gets daily use even on cool coastal mornings.

  • • Depth: Fine spray or under 1 in of water
  • • Extras: Timer or dripper for dry spells
  • • Placement: Near perching shrubs, in view of flowers

Frequently Asked Questions

How do you identify an Anna’s Hummingbird? +
A stocky, medium-sized hummingbird — about 4 inches long — with a straight black bill and a short, broad tail. The male is unmistakable: his entire crown and throat flare iridescent rose-pink in sunlight, then turn dull gray-brown in shade; the female is green above and gray below with a small cluster of rose feathers on her throat. Along the Pacific Coast it is the default hummingbird — the only one commonly present year-round.
What does an Anna’s Hummingbird sound like? +
It is one of the few North American hummingbirds with a true song: a long, scratchy, buzzy warble of jumbled squeaky notes delivered from an exposed perch, sometimes for minutes on end. Everyday calls are sharp ‘tik’ chips, and the male’s courtship dive ends in a loud, explosive chirp produced by air rushing through his tail feathers — a sound with no vocal cords involved.
What do Anna’s Hummingbirds eat? +
Nectar from flowers and feeders is the core fuel, backed by tiny insects and spiders caught in flight or plucked from leaves, plus tree sap from sapsucker wells. At feeders, mix 1 part plain white sugar to 4 parts water — no red dye, no honey. In winter they lean heavily on feeders and winter-blooming shrubs such as manzanita and flowering currant.
Do Anna’s Hummingbirds migrate? +
Mostly no — Anna’s is the only hummingbird that regularly spends the entire winter along the U.S. Pacific Coast, from British Columbia to Baja California. Some individuals wander east after breeding — into Arizona and occasionally the Gulf states — but most stay on territory year-round, surviving freezing nights with torpor and visiting feeders through cold snaps.
How do you attract Anna’s Hummingbirds? +
Keep a clean red feeder filled with 4:1 white-sugar water up all year — in freezing weather bring it in overnight or rotate a warm spare so the nectar never ices over. Plant winter-blooming flowers such as manzanita, flowering currant, and hummingbird sage, skip pesticides so tiny insects remain available, and offer a mister for bathing. On the West Coast, a winter feeder is exactly how this species colonized new neighborhoods.
Key Takeaways
  • Species Profile: Anna’s Hummingbird (Calypte anna) is a 3.9–4.3 inch, 3–6 gram hummingbird (Trochilidae) of the Pacific Coast — stocky and short-tailed, the male wearing a rose-pink helmet, band code ANHU.
  • ID in One Look: Stocky body + short tail + a whole-head pink flash on the male (crown plus gorget); the female is green-and-gray with a rose-spotted throat. A January hummingbird on the West Coast is an Anna’s.
  • The Year-Round Resident: The only hummingbird that winters along the entire U.S. Pacific Coast — feeders and winter gardens carried it from southern California to British Columbia in under a century.
  • The Sound: A true, learned song — scratchy, buzzy, minutes long — plus “tik” chips and the explosive tail-chirp at the bottom of the 60-mph dive; three real field recordings above.
  • Feeder Formula: 4:1 white-sugar water up all year, scrubbed weekly — and kept unfrozen: bring feeders in overnight during freezes or rotate a warm spare at dawn.
  • Garden Formula: Winter bloomers (manzanita, flowering currant, hummingbird sage) plus a spring-to-fall bloom relay, no pesticides, spider webs left standing — and a mister for bathing.

Backyard Bird Watching Field Observation Sheet

Large-print field notebook format designed for American seniors. Print or download as a 1-page PDF.

Anna's Hummingbird Avatar

Bird Watching Log

Species: Anna’s Hummingbird (Calypte anna)

DATE: LOCATION:
TIME: OBSERVERS:
KIND OF BIRD: Anna’s Hummingbird (Rose Helmet Seen: Yes / No — Feeder Visits: ___ — Dive Display Watched: Yes / No — Song Heard: Yes / No)
SEASON
WEATHER
Sunny ☀️ Partly Cloudy ⛅ Overcast ☁️ Windy 💨 Rain 🌧 Snow ❄️ Storm ⛈️
DESCRIPTION
Main Color:
Secondary Color:
Eye Color:
Beak / Bill:
Wings:
Tail:
Body / Breast:
Voice / Calls:
Flock Size:
Habitat / Feeder:
PHOTO / SKETCH / FIELD NOTES
Paste photo or sketch pose here
📷
Feeder behavior notes or plumage sketch