I can see the developer of this app has an interest in hunting and the outdoors and I have to say this is a great idea for an app so well done there. I confess I am a bit disappointed in the quality of the audio. The sounds are quite good in their own right, but the recording quality is spotty at best. During playback there is, in many if not most cases, background hiss and the sound I am supposed to be hearing is too muffled in several. I love the inclusion of Bigfoot. :) a cheeky bit of humor that puts me to liking this developers style.
I would enjoy seeing this app grow in its ability to teach as well. Give us a little more expansion on those great tracks (nice touch making them the audio sliders btw). Perhaps tapping on the icon of each animal could activate a flip page that includes a nice representation (photo or illustration) of the critter and some text about their behavior and habitat, possibly their range, that sort of thing.
Im not a bit sorry I bought this app and good for you guys for making it. I will happily add stars for better audio quality and expanded teaching about these great creatures we tromp around the woods with. ;) I tell you what, you get this thing polished up and youve got a five star treasure on your hands. TTYL good people.