Toads eat far more bugs and slugs than they eat small fish. If you've had a water garden for any length of time, you know that it is all too soon that the pond is over full of fish. The toads help with population control. Breeding Courting frogs expand their throat skin and cause it to vibrate as it deflates. That's what makes their croaking noises.
Individual frogs have different calls that can be recognized by other frogs.
When the happy couple is ready, they hop into the water, and the male mounts the female's back. She eventually releases a long mucous strand filled with black eggs, each the size of a pin head. Sometimes this strand of eggs will be several feet long and contain thousands of eggs. Frogs lay their eggs in clusters. In a week or two most of the eggs will hatch and the body of water will be full of tiny tadpoles under a quarter of an inch in length- black dots with skinny tails that wriggle behind them.