Anna,s-Hummingbird-2020
Click to view Larger.
Like all hummingbirds, the Anna’s spends much of its life in overdrive. When flying, their hearts, no bigger than an infant’s fingernail, beat 1,200 times a minute. Every 60 seconds they breathe 250 times. In a typical day they will visit hundreds of flowers, dining every 15 minutes. It’s not an idle pursuit — they must consume twice their body weight in insects and nectar on a daily basis just to survive. They drink the nectar with tubular tongues that work like pumps and are so long that, when retracted, coil up inside the birds’ heads, around their skulls and eyes. The nectar, which is 26 per cent sugar, acts like rocket fuel, powering their high-octane lifestyle.
The ability to slip into a type of hibernation on chilly nights helps the Anna’s survive our cold and rainy winters. The other factor is the abundance of backyard feeders and ornamental flowers found throughout the city, which provide them with a year-round food supply, in addition to the insects, spiders and tree sap they also feed upon.
Anna,s-Hummingbird-2020
Click to view Larger.
Like all hummingbirds, the Anna’s spends much of its life in overdrive. When flying, their hearts, no bigger than an infant’s fingernail, beat 1,200 times a minute. Every 60 seconds they breathe 250 times. In a typical day they will visit hundreds of flowers, dining every 15 minutes. It’s not an idle pursuit — they must consume twice their body weight in insects and nectar on a daily basis just to survive. They drink the nectar with tubular tongues that work like pumps and are so long that, when retracted, coil up inside the birds’ heads, around their skulls and eyes. The nectar, which is 26 per cent sugar, acts like rocket fuel, powering their high-octane lifestyle.
The ability to slip into a type of hibernation on chilly nights helps the Anna’s survive our cold and rainy winters. The other factor is the abundance of backyard feeders and ornamental flowers found throughout the city, which provide them with a year-round food supply, in addition to the insects, spiders and tree sap they also feed upon.