Wildlife Clinic

Species

Ruby-throated hummingbird

Archilochus colubris

Georgia's only nesting hummingbird, which crosses the Gulf of Mexico in a single non-stop flight.

A male ruby-throated hummingbird perched on a twig, his gorget blazing orange-red in the sunlight above a pale breast.

Photo Unknown photographer (opens in a new tab) / iNaturalist, CC0 1.0 (opens in a new tab)

At a glance

Size
About 7 to 9 cm long
Weight
About 3 g
Habitat
Woodland edges, gardens, parks and yards
Diet
Nectar and small insects and spiders
In Georgia
A common summer resident, March to October
Voice
Squeaky chips; the wings hum
Rabies vector
No

Identification

Male
Bright metallic green back; ruby-red throat that can look black; forked tail
Female
Green back; white throat and underparts; white tail tips
Told apart from
Rufous hummingbird, a winter visitor, which is orange-brown
Told apart from
Hummingbird moths, which are fuzzy insects with antennae
Where to look
Flowers and feeders from spring to autumn

Behaviour

Ruby-throated hummingbirds hover at flowers and feeders, and males chase rivals fiercely from favourite feeding spots. They eat many small insects as well as nectar, and their young are raised mostly on insects.

Before migrating, they nearly double their weight in fat to fuel the flight across the Gulf of Mexico, up to about 800 km non-stop.

Why they matter

These hummingbirds pollinate many native flowers, including trumpet vine, coral honeysuckle and cardinal flower, whose red tubular shapes have evolved alongside them. Their migration, crossing the Gulf on a few grams of fat, is one of the most remarkable feats of any bird.

Reproduction and lifecycle

Nest — A walnut-sized cup of plant down bound with spider silk and covered in lichen
Eggs — Two, the size of a pea
Incubation — About 12 to 14 days, by the female alone
Nestlings — Fledge at about 18 to 22 days
Broods — One or two a year
Lifespan — Usually three to five years

Living around people

  • Native flowers such as coral honeysuckle, cardinal flower and red buckeye feed them better than any feeder.
  • A nectar feeder does no harm if the sugar water is one part sugar to four parts water, with no red dye, and changed every few days in heat.
  • Hummingbirds get trapped in garages, often drawn in by the red release handle on the door opener; opening the door fully and switching off the lights usually lets them find the way out.
  • Pesticides remove the tiny insects they feed their young.

Misconceptions

  • Feeders stop hummingbirds migrating. Day length, not food, triggers migration.
  • Hummingbirds ride on the backs of geese. They migrate alone, under their own power.

Related species

Seasonal activity

When this species is breeding, and when there are nests on the ground. Mowing during the shaded months is how most nests are found.

Breeding and active nests by month for this species
JanFebMarAprMayJunJulAugSepOctNovDec
BreedingJan: noFeb: noMar: noApr: noMay: noJun: noJul: noAug: noSep: noOct: noNov: noDec: no
Active nestsJan: noFeb: noMar: noApr: noMay: noJun: noJul: noAug: noSep: noOct: noNov: noDec: no
NotesIn Central AmericaIn Central AmericaFirst males arrive in south GeorgiaArriving statewideNestingNesting; second broodsYoung fledgingFeeding heavily; migrants passing throughPeak migrationLast birds leavingA few stragglersIn Central America

Where it lives

Recorded in 73 states and provinces. Each one links to the other animals there, and to the rehabilitators licensed for them.

If you found one

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