Anna'S Hummingbird

Fascinating facts about the Anna'S Hummingbird

• An Anna's hummingbird's heart beats 500 times per minute at rest — and over 1,200 times per minute during courtship dives. For comparison, a human heart at maximum exercise hits 200 beats per minute. This tiny bird's cardiovascular system operates at a metabolic intensity that would kill most animals; it's why they must eat every 10 to 15 minutes or starve within hours.
• During a dive to impress a mate, an Anna's hummingbird reaches 240 body lengths per second — faster than a peregrine falcon relative to their size. The dive produces a loud chirp through tail feathers vibrating at 40 Hz, a sound so intense the bird briefly loses hearing from the noise it makes. Males perform this death-defying manoeuvre dozens of times a day during breeding season.
• Anna's hummingbirds expanded their range northward by over 1,500 km in just 60 years, invading areas as far as the Pacific Northwest and even inland deserts — a shift driven entirely by ornamental plants people planted in gardens. What was once a Mexican endemic is now resident year-round across California and Arizona, rewriting its own evolutionary timeline in a single human lifetime.
• A hummingbird's eye takes up 50% of its head by volume, with vision so acute it sees ultraviolet light invisible to humans and can detect motion at 10 times the rate we can. They navigate by colour wavelengths we don't perceive and spot competitors from across a valley. Their world is essentially a different spectrum than ours.
• An Anna's hummingbird weighs less than a penny but migrates thousands of kilometres on a tankful of fat no bigger than a pea. Before crossing open ocean or desert, they double their body weight in two weeks. This bird manages fuel efficiency and payload better than most aircraft, burning energy so fast that its body temperature swings by 25°C between active day and torpid night.

At a glance

About the Anna'S Hummingbird

In the lush, vibrant landscapes of the Pacific Northwest, the Anna's Hummingbird dances on iridescent wings, its emerald feathers glimmering like jewels in the sunlight as it darts with reckless abandon from bloom to bloom. With a fiery spirit and an insatiable appetite for nectar, this tiny, pugnacious bird weaves a mesmerizing trail of movement, its rapid wingbeats a blur of motion as it pursues its endless quest for sustenance. As it hovers, suspended in mid-air, its brilliant pink gorget flashing like a beacon, the Anna's Hummingbird embodies the very essence of life and energy, a whirlwind of color and motion that is at once captivating and unforgettable.

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