Scientifics help a lot, I remember a long time ago, soon after I started birding, I met some people from the UK on a ringing station, and If it werent for the scientific names I wouldn't know which birds they saw :) And they remove the problem of different common names in different countries, it's an unniversal language. Well, or it can just be my geeky scientifical side! Do try Merlin, tell me if you find it valuable. I loved the app!