Hummingbirds can weigh less than a penny, and have heart rates as high as 1200 beats per minute.
How do they stay alive in winter?
They have tricks:
They weave their nests with spider silk, which must be pretty warm.
They sit around most of the time.
They consume more than their body weight in nectar (or sugar water) every day and supplement with insects.
They fiercely defend their territory from invaders.
When food is scarce, they slow down their heart rates, as low as 80 beats per minute.
They train humans. I recently bragged to friends about single-handedly saving the hummingbirds from a cold spell by thawing out the feeder two or three times a day. My friends confessed they had all done the same. We’re foot soldiers to one ounce generals.
FIVE RULES FOR HELPING HUMMINGBIRDS SURVIVE IN WINTER.
(1) Standard fare: 1 cup white sugar to 4 cups water. Heat to almost boiling so the nectar doesn’t ferment and intoxicate the hummingbirds, although that might be funny. In extreme cold, it’s OK increase the concentration of sugar, maybe 1 1/4 to 4, but return to normal concentration when whether warms. Too much sugar will cause harm to the birds.
(2) Healthy sugars for humans are bad for hummingbirds. Brown, raw and turbinado sugars can be fatal over time. Use white sugar.
(3) When it’s below freezing, take your feeder in at night, or rotate two feeders, allowing one to thaw while the other remains on duty.
(4) Change the food every few days so you don’t start any salmonella epidemics.
(5) Pipe cleaners and old tooth brushes work well to clean black stuff, like mold, off the feeder.
Follow these rules and you are qualified to be a hummingbird slave. The birds will reward you by appearing daily, even when it’s twelve below. The Aztecs believed hummingbirds brought sexual potency and skill at war, but there is no scientific proof, so admire and envy hummingbirds for their amazing metabolism, and wish the same for ourselves, especially at this time of year.