Quiz yourself!

Here are a few sound clips to test your identification abilities:

Identify species calling:

Highlight for answers: 1. Green Frog   2. American Bullfrog

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Identifying the calling index is also part of the data collection and will give us a rough estimate of population size at each site.  Identify the calling index for both Bullfrog and Green Frog according to chart below:

Amphibian Calling Index

1- Individuals can be counted; spaced calls

2- Individual call can be distinguished, but there is overlapping

3- Full chorus, calls are constant, continuous and overlapping

Highlight for answers: 3. Green frog (3), Bullfrog (1)    4. Green frog (2-3), Bullfrog (1-2)

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Sound clip sources:

http://www.californiaherps.com/noncal/misc/miscfrogs/pages/l.clamitans.sounds.html

http://www.californiaherps.com/frogs/pages/l.catesbeianus.sounds.html