Species Spotlight

The Ruby-throated Hummingbird

The only hummingbird that breeds in New Jersey. Three grams of muscle and iridescence that crosses the Gulf of Mexico without landing, then spends the summer in our gardens.

A male ruby-throated hummingbird feeding on common milkweed blossoms
A male ruby-throated hummingbird at common milkweed. Photo: U.S. Fish & Wildlife Service.
~53Wingbeats per second
1,200Heartbeats per minute
500 miNonstop over the Gulf
May-SeptNesting in New Jersey
Plate No. 01 A metabolism with feathers

An Economy of Red

Archilochus colubris

Bees cannot see red. Hummingbirds key on it. That single fact makes the hummingbird garden a different plant list from the bee garden.

A hummingbird runs so hot it lives meal to meal. It feeds every ten to fifteen minutes through the day and can visit well over a thousand flowers doing it, favoring exactly the blooms most insects skip: long red tubes like cardinal flower and coral honeysuckle, shaped so that a hovering bird with a long bill gets the nectar and carries the pollen. Flowers do not bother advertising in a color their pollinators cannot see, which is why so many of them went red for the birds.

Nectar is the fuel, not the whole diet. Small insects and spiders supply the protein, which is one more reason a sprayed yard is an empty yard, whatever is blooming in it.

The nest is the size of a thimble, built of plant down lashed together with spider silk and shingled with lichen. The silk lets it stretch as the two chicks grow. Most people have stood within feet of one and never known it.

Feeds every 10 to 15 minutes Insects for protein Nest of spider silk
A ruby-throated hummingbird hovering to drink from bright red cardinal flower blooms
WeightAbout 3 grams
DietNectar, plus small insects
Feeding paceEvery 10 to 15 minutes
Built forRed tubular flowers
NestThimble-sized, stretches as chicks grow
Plate No. 02 Twice a year, no landings

The Crossing

New Jersey to Central America and back

The hardest thing any three-gram animal does: the Gulf of Mexico in one flight.

Ruby-throats winter from southern Mexico down to Panama. Many of them get there by flying straight across the Gulf of Mexico, roughly five hundred miles of open water with nowhere to land, around twenty hours of continuous flight. To survive it, a bird nearly doubles its body weight in the weeks before, built almost entirely on nectar. Every late-summer flower in a South Jersey yard is part of that fuel load.

They return to us in May, males first, and nest through the summer. By late September they are gone again.

The honest picture on their numbers: survey counts rose for decades, but since the mid-2000s counts across much of the East have slipped, New Jersey included. Nobody calls it a crisis yet. Quiet slides like this are exactly how the loud ones start, and the fix is the same either way: flowers in bloom when the birds need them, and no poison on the plants.

Doubles its weight to migrate ~20 hours over open water Back in New Jersey each May
A ruby-throated hummingbird hovering in mid-air, wings spread
Winters inSouthern Mexico to Panama
Gulf crossing~500 miles, about 20 hours
Arrives hereMay, males first
DepartsBy late September
Trend since mid-2000sSlipping across the East
What You Can Do

Five Ways to Feed the Birds

A hummingbird yard is not a bee yard with a feeder in it. The birds key on red tubular flowers that most insects skip, and they need the food to run from their arrival in May through the September fattening for the Gulf.

The Hummingbird Plant Chart

Red, Tubular, and Timed to the Birds

Every plant here is native to our region and shaped for a hovering bird with a long bill. Together they cover the whole season, from the first males in May to the last stragglers heading south.

PlantBloomsWhat it does
Wild columbineAquilegia canadensisApril to JuneFirst fuel for the May arrivals
Coral honeysuckleLonicera sempervirensMay to summerA vine for fence or trellis, blooming as the birds return
Scarlet bee balmMonarda didymaJune to AugustMidsummer mainstay
Trumpet creeperCampsis radicansJuly to SeptemberBig orange trumpets. Give it room, it is vigorous
Cardinal flowerLobelia cardinalisJuly to SeptemberThe best hummingbird plant we can grow. Likes damp ground
JewelweedImpatiens capensisJuly to frostWild fall fuel along wet edges for the trip south

Plant Red, and They Will Find It

Every cardinal flower and coral honeysuckle we plant is a fuel stop on a three-thousand-mile round trip. Help us plant more.

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