Wild man.  I heard the 'wood blocks' of course but didn't hear any frogs - had to read your description again - those 'are' the frogs!  Good luck with your studies. 

Thanks Scott, yea those woodblocks are frogs.  It's amazing once you start listening to the sounds of the real world you start to go...you know that frog sounds very percussive I could use that as a bongo, or woodblocks.  Cars start sound like dirty synth lines and motorbikes dirty bass lines and on it goes.
 
Ben