My gf recently discovered this and it is very good! Not surprising, coming from Cornell. Seems to be good even in relatively noisy environmants, picking out birdsong from other ambient sounds.
Available on Six Continents, Merlin Bird ID Can Now Identify 6,000+ Bird Species
"The idea for the Merlin Bird ID app was hatched at the Cornell Lab of Ornithology in 2009 as we asked, “Can we create an interactive tool to help people identify birds?” Thanks to funding from the National Science Foundation, support from donors, and a wealth of data from birders, photographers, and audio recordists using eBird, our free Merlin Bird ID app has helped millions of people around the world to identify birds..."
Available on Six Continents, Merlin Bird ID Can Now Identify 6,000+ Bird Species
"The idea for the Merlin Bird ID app was hatched at the Cornell Lab of Ornithology in 2009 as we asked, “Can we create an interactive tool to help people identify birds?” Thanks to funding from the National Science Foundation, support from donors, and a wealth of data from birders, photographers, and audio recordists using eBird, our free Merlin Bird ID app has helped millions of people around the world to identify birds..."