21 Oct Unwanted Passengers
Imagine this: Unwanted passengers on a Sonoran Bumble Bee.
The bee has just taken flight from a cactus flower with two ants clinging to its legs as unwanted passengers.
The wings appeared blurred because my shutter speed of 1/5000 sec was too slow to catch a sharp photo of them.
According to Douglas L. Altshuler, honeybees move their wings at rates of 230 beats per second. See his paper: “Short-amplitude high-frequency wing strokes determine the aerodynamics of honeybee flight.”
By the way, this is much faster than a hummingbird, which beats its wings at rates as high as 70 per second (unless it’s in a dive – then the rate is up to 200/sec).
See more at:
Here are two excellent books about birds. I recommend both of them.
Did You Know?
The most effective way to help birds is to buy land.
Please visit the web site for The Trust for Public Land to learn about what they’re doing.