The tiny green frog with the BIG voice - the Sierran Treefrog.

I love these little green frogs. They can change color, though, to adapt to their environment but they can't turn white. Ann Marie Meyer photographed one on a Calla Lily.

Below is a photo of a Treefrog that has changed its color to a blue/gray. It was taken by Susan Ruschmeyer.

When the male calls for a mate, the sound is so much louder than you'd expect from such a tiny frog. Peter Baye captured a photo of the voice sac in action. Amazing photo!

Thanks to Ann Marie, Susan and Peter for allowing me to share their photos with you here.