
Selasphorus calliope is a type of hummingbird found in the mountains of Mexico and Central America.
This bird is known for its iridescent feathers, which reflect the light and give it a shimmering appearance.
The Selasphorus calliope is a small bird, measuring only about 3.5 inches in length, and weighing around 0.1 ounces.
It has a long, extendable tongue that helps it gather nectar from flowers, which is its primary source of food.
Expand your knowledge: Calliope vs Anna's Hummingbird
Taxonomy
The Calliope Hummingbird is part of the Selasphorous genus, which includes eight other species in North and Central America.
These species are all of fairly similar build and plumages, making identification a bit tricky but still possible.
The Calliope Hummingbird belongs to the Kingdom Animalia, Phylum Chordata, Class Aves, Order Apodiformes, Family Trochilidae, Genus Selasphorous, and Species Selasphorous calliope.
This classification helps us understand the bird's evolutionary history and its place in the natural world.
The scientific name Selasphorous calliope is a combination of the genus name Selasphorous and the species name calliope, which is a unique identifier for this particular species.
This classification system is widely used by biologists and bird enthusiasts to identify and study different species of birds.
Expand your knowledge: Calliope Hummingbird
Habitat and Behavior
Calliope Hummingbirds live in mountainous regions of western North America, specifically in the Rocky Mountains, stretching from southern California to British Colombia.
They thrive in open, scrubby habitat and early secondary growth, often nesting in thinly wooded areas or the edge of young forests. They also like to feed on wildflower meadows and low, flowering bushes.
In the summer, they can be found breeding at elevations as high as 3,400 meters, which is impressive considering their small size. They spend the winter in southern Mexico in dry scrub and open forest.
During the day, Calliope Hummingbirds spend their time straddling or fluttering above flowers in search of nectar, which they extract with a long extendable tongue. They are solitary creatures, only interacting with one another during the reproduction period.
Habitat
Calliope Hummingbirds live in mountainous regions of western North America, specifically in the Rocky Mountains, where they find open, scrubby habitat and early secondary growth.
They breed in areas with thinly wooded terrain, or the edge of young forests, and like to feed on wildflower meadows and low, flowering bushes.
Some nests are found at very high elevations, up to 3,400 meters, which is impressive for such small birds.
They spend the winter months in southern Mexico, where they inhabit dry scrub and open forest.
In the summer, you can spot them in mountain meadows, aspen thickets near streams, and open forests that are regenerating from a forest fire or logging.
Mature males often perch on open willow branches in high positions, giving them a complete overview of their territory, especially during the reproductive season.
They are more prevalent in interior locations at higher elevations along rocky mountains in the fall, and can also be found in forest clearings and valleys.
Behavior
Calliope hummingbirds are isolated creatures that solely interact with one another during the reproduction period. They are fiercely territorial, and males aggressively protect their reproduction and feeding areas from intruders.
Males will often engage in aggressive behavior to defend their territory, which can be quite intense. During the day, calliope hummingbirds spend their time straddling or fluttering above flowers in search of nectar.
They extract nectar with a long extendable tongue, which is a remarkable adaptation that helps them gather food efficiently.
Predators
As you consider creating a hummingbird-friendly habitat, it's essential to think about the predators that might be lurking nearby.
Domestic cats are a significant threat to hummingbirds in residential areas, making it crucial to carefully consider whether to put up a hummingbird feeder or not.
In natural habitats, adult hummingbirds have to contend with small birds of prey like Merlins and Sharp-shinned Hawks.
These birds are fast and agile, making them a formidable challenge for hummingbirds to avoid.
Nests are especially vulnerable, especially when the female hummingbird leaves to feed herself.
Opportunistic birds can quickly snatch the nest contents if the female hummingbird isn't present to chase them away.
Migration and Diet
The Calliope Hummingbird is a remarkable bird, and its migration patterns are just one of the many fascinating things about it. They travel an astonishing 2500 miles from the Rocky Mountains to Mexico, a journey that's made possible by their ability to adapt to different ecosystems.
These birds are incredibly resourceful, and their diet reflects that. They feed mostly on nectar, which they collect from flowers or feeders provided by humans.
Calliope Hummingbirds have a unique way of feeding on flowers, often targeting the lowest flowers that are less favored by other birds. This allows them to keep a low profile and avoid competition.
In addition to nectar, they also feed on small insects that they catch in flight, often after watching from a favorite exposed perch and waiting to see a suitable prey item come into range before darting out to get it.
Migration
Migration is a remarkable feat for the Calliope Hummingbird, traveling an astonishing 2500 miles from the Rocky Mountains to Mexico, a journey that takes them through different ecosystems in search of food and resources.

Males arrive first in mid-April, establishing territories before the females show up in early May. They mate with the last female they can find, and then start their southbound migration.
The fall migration route follows the Rocky Mountains, a different path than the spring route along the Pacific coast. This shows how adaptable these birds are, adjusting their route to suit their needs.
In late June, males are already departing, and females will follow in July, one of the earliest migrations from North America. This highlights the importance of timing in migration, with the birds needing to arrive at their destinations before resources become scarce.
Diet and Feeding
Calliope Hummingbirds primarily feed on nectar, which they collect from flowers or feeders provided by humans.
Their small size makes them vulnerable to being pushed off flowering plants by larger hummingbirds, so they often feed on the lowest flowers, close to the ground.
This allows them to keep a low profile and avoid competition from other birds.
Calliopes have also been recorded visiting sap wells, where they can feed on both sap and small insects attracted to the wells.
They catch small insects in flight, often after watching from a favorite exposed perch and waiting for the right moment to strike.
Breeding and Population
The Calliope Hummingbird's breeding habits are a fascinating sight to behold. Males arrive at the breeding grounds between mid-April and early May, establishing territories that they fiercely defend throughout the breeding season.
These territories are relatively small, spanning 0.2-0.3 hectares. The male's territorial display involves repeated diving in deep U-shaped patterns from heights of around 20 meters, used to declare his territory to other males and attract females.
The female Calliope Hummingbird builds her tiny cup nest on top of a small branch, often on a conifer tree, protected by a larger branch overhead to shield it from the weather and predators. She constructs the nest from downy plant material, bark fibers, and other soft plant material, with lichens on the outside to aid camouflage and spider webs woven throughout.
It's estimated that there are around 4.5 million Calliope Hummingbirds in the wild, with the population remaining stable in recent times.
Breeding and Nesting

Calliope Hummingbirds arrive at breeding grounds between mid-April and early May, with males establishing territories that they fiercely defend throughout the breeding season.
Males claim territories of 0.2-0.3 hectares and use repeated diving in deep U-shaped patterns from heights of around 20 meters to declare their territory to other males and attract females.
The female builds her tiny cup nest on top of a small branch, with a larger branch overhead to protect it from the weather and reduce its visibility to potential predators.
Conifer trees are favored for nest sites, and the nest is often built on the spot where a pine cone was previously attached.
She lays two white eggs and incubates them alone for fifteen days, with the male playing no role in raising his offspring.
After mating, the male will continue to search for other females within his territory to partner with, ensuring every female Calliope has the opportunity to reproduce and raise as many youngsters as possible each season.

The female takes regular breaks from the nest to visit nearby food sources while incubating, and after hatching, she looks after the chicks for another 18 to 20 days.
The female feeds the chicks mostly insect prey, and after fledging, the young will be fed by the female for a few days before becoming self-reliant.
Calliope Hummingbirds are polygynous, meaning they do not form pairs, and males claim and fiercely protect a nesting territory where they will breed with a large number of females.
The male's courtship display involves hovering, making a loud buzzing sound, with throat feathers protruding and facing a female.
The male does not partake in raising the young and frequently leaves the breeding grounds before the young hatch.
The independent age of a Calliope Hummingbird is 20 days, and the baby is set to leave the nest.
Population
Calliope Hummingbirds are notoriously difficult to study due to their remote mountain habitats and migratory patterns.
Their breeding grounds are found in rugged mountainous areas, which makes it a challenge to track their population.
The estimated population of Calliope Hummingbirds is around 4.5 million.
Recent population counts suggest that the numbers have remained stable in recent times.
Conservation and Lifespan
The Calliope Hummingbird's lifespan is relatively short, with the average bird living only six years in the wild. Most won't even reach that age, with many dying young.
The oldest recorded Calliope Hummingbird was a female that lived to be eight years and one month old. That's a remarkable feat for such a small bird.
Calliope Hummingbirds are actually not considered endangered, thanks to their stable population size and broad breeding range. They're classified as "Least Concern" by the IUCN.
Are Endangered?
Calliope Hummingbirds are classified as being of 'Least Concern' by IUCN, thanks to their broad breeding range and large and stable population size.
Their stable population size is a testament to effective conservation efforts, which have helped protect their habitats and prevent significant declines in numbers.
In fact, their broad breeding range allows them to adapt to changing environments and expand their territory as needed.
This adaptability is crucial for their survival, allowing them to thrive in a variety of conditions.
Their stable population size also means they can be found in many different parts of their range, making them a common sight for birdwatchers.
Their 'Least Concern' classification is a positive sign for their conservation status, but it's essential to continue monitoring their populations and habitats to ensure their continued well-being.
Lifespan
The Calliope Hummingbird's lifespan is a remarkable aspect of their biology. Most will only survive a few years.
On average, a Calliope Hummingbird lives for six years. However, this can vary depending on the circumstances.
The oldest recorded lifespan of a Calliope Hummingbird is eight years and one month old. This remarkable individual was a female.
Life is indeed fast and furious for hummingbirds, which may contribute to their relatively short lifespan.
Frequently Asked Questions
Are calliope hummingbirds rare?
Calliope Hummingbirds are rare, especially outside their typical range in the Cascades. They are considered vagrants in areas far west of their usual habitat.
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