(Anna’s Hummingbird)

 

 

 

Hummingbirds are found only in the Americas.

 

 

 

More than a third of all hummingbird species live in the Andes, like this guy, the Ecuadorian Hillstar. The Andes are at 16,000 feet elevation (4877 meters). There is forty percent less oxygen there than at sea level.

 

 

 

 

 

Hummingbirds have a tongue that splits in two and it has tiny feathery cilia at the ends that drag fluid in. The tongue is thinner than a fishing line and dips in nectar twenty times a second.

 

 

 

 

Hummingbirds’ wings work like hands treading water, they achieve updraft on both strokes like an insect.

 

 

 

 

The tiniest bird species in the world is the Bee Hummingbird. Also known as Cuban bees, they weigh less than 1/15 of an ounce (roughly 1.7 grams)- that’s less than an American dime!

 

 

 

 

Even while sleeping the hummingbirds’ metabolism is so high that if they slept through the night, they’d burn too much energy and die of starvation by morning. So each night, the hummingbirds enter torpor, a state beyond sleep. Metabolism slows by ninety percent. Heart rate goes from 1000 beats per minute to a mere 70. Their body temperature falls from 104 degrees F (40C) to close to the ambient air temperature (in the Andes that’s often around 46 F or 8 C).

 

 

 

 

Inside every hummingbird lurks a bird of prey. Hummingbirds must supplement their diet of nectar with insect protein. They hunt tiny bugs in the open air and catch them in mid flight.

 

 

 

 

Hummingbirds are restless, confrontational creatures. They are constantly fighting over the best place to attract a mate, the best flowers, the best perch to catch bugs from. This intensity inspired them to move all the way from their birthplace in South America up into Central America and then into North America- including Canada. Only 17 species so far have made it to North America but they keep on advancing. A century ago the Anna’s Hummingbird bred only in Baja, Mexico and Southern California. But in just 100 years, their breeding ground has extended all the way up the west coast to the Canadian border and some are now permanent residents in the Pacific Northwest.

 

 

 

Some hummingbirds also do serious migrations each year, arriving from their wintering grounds in Central America and Mexico to breed in the mountains of the American West, just as the flowers begin to bloom.

 

 

 

 

A Costa’s Hummingbird displaying his beautiful feathers in an aerial dance, in hopes this female will mate with him

 

 

 

 

Hummingbirds are important pollinators, performing vital services for the ecosystem.