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A fun part of studying birds is learning about their behavior. If you understand what they do and why, you can use that knowledge to get a better look at them.
What do thunder, the sound of a balloon popping, and the sound of a firecracker have in common? They are all caused by expanding air.
This is a simple trick that my Grandfather taught me MANY years ago. It is a way to make all sorts of strange sounds with a blade of grass.
Tree frogs can be very small, but very loud. How can they tolerate making such loud sounds?
Is it really true that the quacking sound of ducks does not produce an echo?
I got this photo during our visit to White Sands, and used the sound of the thunder with the Flash/Bang method to determine that the bolt was about two miles away. How does lightning produce thunder?