a24f8ac4_uxent_Wildlife_Research_Center__Reference_on_Site
[Did You Know...] that you can learn the breeding calls of frogs and toads in the eastern United States and that you can listen to the calls of species in your state by using the frog call lookup option? [Reference on Site] 
This is available on the Public Quiz of our Frog Call Quiz website at http://www.pwrc.usgs.gov/Frogquiz/index.cfm?fuseaction=publicQuiz.StartPublicQuiz and the frog call lookup option is found at: http://www.pwrc.usgs.gov/Frogquiz/index.cfm?fuseaction=main.lookup
Did you know? - Patuxent Wildlife Research Center
Reference on Site