Attributions
Images
InApp Audio

thunderclose1.m4a is a derivative of Dry thunder2.wav
by juskiddink, used under CC BY 3.0

thunderclose2.m4a is a derivative of Thunder Strike 1
by Mike Koenig, used under CC BY 3.0

thundermid1.m4a is a derivative of single_thunder_clap.wav
by SpeedY, used under Public Domain

thundermid2.m4a is a derivative of Donner2.wav
by swuing, used under CC BY 3.0

thunderfar1.m4a is a derivative of Thunder
by MorningGloryProductions, used under Public Domain

thunderfar2.m4a is a derivative of medium_distance_thunderclap_2.wav
by S_Dij, used under CC BY 3.0

rainheavy.m4a is a derivative of Heavy Rain
by lebcraftlp, used under CC BY 3.0

rainnormal.m4a is a derivative of Medium Rain.aif
by timgormly, used under Public Domain

rainlight.m4a is a derivative of Rain light 1 (rural)
by jmbphilmes, used under Public Domain

birds.m4a is a derivative of Spring Birds Loop with LowCut (New Jersey)
by hargissssound, used under Public Domain

cicadas.m4a is a derivative of Cicadas24bit.wav
by Ty Ford, used under CC BY 3.0

crickets.m4a is a derivative of Crickets.wav
by michaeljblake, used under Public Domain

frogs.m4a is a derivative of sherman_frogs_06_04mar2010.WAV
by aguasonic, used under CC BY 3.0

tinroof.m4a is a derivative of Rain on tin shed roof.wav
by LeviDT, used under CC BY 3.0