What Does a Ruby-Throated Hummingbird Look Like?

by Victor

The ruby-throated hummingbird (Archilochus colubris) is a fascinating and beautiful creature that captivates both bird enthusiasts and casual observers alike. Found in various parts of North America, this tiny bird is renowned for its vibrant colors, rapid flight, and distinctive characteristics. In this article, we will delve into the intricate details of what a ruby-throated hummingbird looks like, exploring its physical appearance, behavior, and unique adaptations that make it such an awe-inspiring species.

Ruby-throated Hummingbird Physical Appearance:

Measuring just 7-9 centimeters in length and weighing approximately 3 grams, the ruby-throated hummingbird earns its title as the smallest bird species in North America. Despite its diminutive size, these avian wonders boast a striking appearance. Let us begin our exploration by examining their artistic color palette:

1. Head and Body:

The head and body of a ruby-throated hummingbird exhibit a vivid emerald green coloration. This iridescent plumage is dazzling in the sunlight, giving them an enchanting glow. When observed from certain angles, the feathers on their heads can appear brownish or black, which creates an interesting contrast against the green. Additionally, males possess a small patch of white, malar feathers just behind their beaks, enhancing their aesthetic appeal.

2. Throat:

The most distinctive feature of a ruby-throated hummingbird, as its name suggests, is the vibrant red throat patch or gorget. This glossy, metallic red extended to the sides of the neck, capturing the essence of a glowing ruby gemstone. This throat patch serves a dual purpose: it acts as an effective territorial signal for males during the breeding season and plays a significant role in attracting potential mates.

3. Wings:

Ruby-throated hummingbirds possess elongated wings that are narrow and tapered, enabling them to perform intricate aerial maneuvers with incredible precision. These wings are almost translucent, featuring shades of blackish-brown and grayish-white. Their fast wingbeats, ranging from 55 to 75 beats per second, allow them the ability to hover in mid-air, fly backward, and dart swiftly between flowers in search of nectar.

4. Tail:

The tail of a ruby-throated hummingbird is relatively short, consisting of ten feathers that exhibit an interesting shape. The central pair, known as the rectrices, are slightly longer and more squared off than the others, standing out in contrast to the rest. In normal flight, these rectrices remain closed, but when in courtship or territorial displays, the male hummingbird fan outs his tail feathers, which enhances his display and impresses potential mates or rival males.

Behavioral Traits of the Ruby-throated Hummingbird:

Apart from their striking physical appearance, ruby-throated hummingbirds also showcase remarkable behavioral traits that set them apart from other birds:

1. Feeding Habits:

These stunning birds are known for their high metabolism and energy requirements, as they constantly need to refuel to sustain their lightning-fast flight. Ruby-throated hummingbirds primarily feed on nectar from a variety of brightly colored flowers with tubular shapes. Utilizing their long, extendable tongues, they can dart their beaks deep into flowers to extract nectar. They also play a critical role in plant pollination as they inadvertently transfer pollen between flowers during their feeding process.

2. Migration Patterns:

Ruby-throated hummingbirds exhibit fascinating migratory behavior. They breed in the eastern parts of North America and then embark on an astonishing journey, often crossing the Gulf of Mexico, to their wintering grounds in Central America or even as far as South America. Their migratory patterns are guided by instinct and favorable conditions, including the availability of nectar-rich flowers and suitable temperatures. Scientists are still unraveling the mysteries surrounding their navigational abilities, which include the ability to perceive Earth’s magnetic fields.

3. Territoriality:

Male ruby-throated hummingbirds are known for their territorial nature, often defending prime feeding and nesting areas. With their vibrant red gorgets and conspicuous aerial displays, they seek to assert dominance and ward off potential rivals. These displays can include elaborate flights, rapid dives, or mid-air battles.

4. Breeding:

During the breeding season, female ruby-throated hummingbirds look for suitable mates while males attempt to attract them with their vibrant coloration and mesmerizing aerial displays. Once a pair has formed, the female will lay one to three eggs, typically about the size of a pea. The male does not participate in incubation; instead, the female is solely responsible for nest construction and rearing the offspring. The eggs hatch after an incubation period of around 14 to 17 days, and the chicks fledge after another three weeks.

Unique Adaptations of the Rufous-throated Hummingbird:

The ruby-throated hummingbird possesses several remarkable adaptations that enable it to thrive in its environment:

1. Metabolism:

To sustain their tremendous energy demands for their fast and agile flight, hummingbirds exhibit an astonishingly high metabolism. Their heart rates can reach up to 1,200 beats per minute, while their breathing rate can exceed 250 breaths per minute. In response, they consume vast amounts of nectar to fuel their metabolisms and maintain their active lifestyle.

2. Beak Structure:

The long, slender beak of a ruby-throated hummingbird is perfectly adapted for reaching deep into tubular flowers. Remarkably, the beak length closely matches the corolla lengths of the flowers they feed from, enabling them to access nectar that is inaccessible to other birds. Additionally, hummingbird beaks contain grooves to guide the nectar towards their tongues, making them incredibly efficient nectar extractors.

3. Rapid Wingbeats:

Hummingbirds possess the unique ability to hover in mid-air, fly backward, and maneuver with exceptional speed and agility. Their rapid wingbeats, combined with their pectoral muscles, allow them to generate enough lift to remain suspended, showcasing their exceptional flight capabilities.


The ruby-throated hummingbird is a mesmerizing and captivating species that leaves a lasting impression on all who observe it. From its vibrant, iridescent plumage adorned with a glorious ruby throat to its astonishing flight capabilities and fascinating behaviors, this bird is a true marvel of the natural world. Despite being one of the smallest birds, it possesses incredible adaptations that have enabled it to flourish in its North American habitat. Its unique physical appearance, coupled with its intriguing behaviors, makes the ruby-throated hummingbird a bird species that continuously captivates the imagination of both seasoned bird enthusiasts and casual observers.

Fun Facts About Ruby-Throated Hummingbirds

1. Size and Color: Ruby-throated hummingbirds are quite small, with a length of around 3 to 3.5 inches (7.5 to 9 cm). The male birds are known for their vibrant iridescent green feathers, while their name comes from the brilliant red throat patch, or gorget, that shimmers like a ruby in the sunlight.

2. Migration: These hummingbirds are known for their incredible migration. They travel from their breeding grounds in North America, including parts of the United States and Canada, all the way to their wintering grounds in Central America, a journey that can span up to 2000 miles (3200 km). This migration is one of the longest journeys undertaken by any bird species.

3. Feeding: Ruby-throated hummingbirds have an incredibly high metabolism, and they need to feed frequently to maintain their energy levels. They primarily feed on nectar from flowers using their long, specialized bills and also consume insects and spiders for protein.

4. Hovering: Hummingbirds are the only birds that can hover in mid-air by rapidly flapping their wings in a figure-eight pattern. This ability allows them to access nectar from flowers and feeders while staying in one spot.

5. Heartbeat and Breathing: To support their high metabolism and rapid wing beats, ruby-throated hummingbirds have a heart rate that can reach up to 1,200 beats per minute and a breathing rate of about 250 breaths per minute when at rest.

6. Courtship Display: Males perform elaborate aerial displays to attract females. These displays involve flying high into the air and then rapidly diving down while making a loud chirping sound with their wings.

7. Egg Size: Despite their small size, ruby-throated hummingbirds lay relatively large eggs compared to their body size. Their eggs are about the size of a pea.

8. Nesting: Ruby-throated hummingbirds build tiny cup-shaped nests using materials like plant fibers, spider silk, and bits of leaves. They often place these nests on tree branches or in other sheltered locations.

9. Territorial Behavior: These hummingbirds are known for their territorial behavior, especially around food sources. A single male may aggressively defend a patch of flowers or a feeder, chasing away other birds and even insects.

10. Longevity: In the wild, ruby-throated hummingbirds have an average lifespan of about 3 to 5 years. However, some individuals have been known to live longer, reaching up to 9 years.

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