Luftrum have just released Free Field Recordings, an amazing collection of field recordings with over 1 GB of high quality recordings. You can download the library for free via SoundCloud or you can purchase it on a pay what you want basis with all the proceedings going directly to the Save The Children charity.
They are licensed under a Creative Commons Attribution License (CC BY 3.0) meaning you are free to share, copy, remix or otherwise transform the sounds for commercial or non-commercial use on the condition that you give appropriate credit where the sound is used.
These are well worth downloading and make yourself feel good by giving a little bit of money to charity as well!!