Taillow is one of my favorite pokemon and I just wanted to know where to get it.
Yes, if you go to the first route between New Bark and Cherrygrove on a Wednesday and play the pokemon music channel in your poke-gear, you will get the hoenn sounds and after a while of looking, you should find a Tailow and then you can evolve it into my favorite non-legendary bird in all the games, Swellow!
THAT´S NOT TRUE!
Taillow can be obtained in HG/SS ONLY in Cherrygrove City, surfing onto higher place in trees (you need Rock Climb, Surf and Headbutt). Headbutt the left tree for a while, it will be there. 100%.