Tall Grass: Raticate, Rattata, Spearow, Growlithe, Murkrow, Houndour.
Headbutt on trees: Spearow, Heracross, Combee
Hoenn Sound: Minun, Plusle
Sinnoh Sound: Shinx
Route 7 or the Safari Zone.
route 7, lv 15. or safari zone in the Savannah area with 4 forest objects placed =)Route 7 (night only)Route 7 & the safari zone is where you can find Houndour in Pokemon HeartGold.
The safari zone (swamp area)You can find Murkrow at:Route 7,Route 16Safari Zone
you can not go undergrond
go to the safari zone or go to route 7.It's so so so easy.
You can catch a Meowth on: Route 5, Route 6, Route 7, Route 8, Route 38, Route 39
you can catch houndour on route 7 at night only and evolve it to level 24 and that's how you can get houndoom well that or you can trade
You can breed Vulpix by going to the Pokemon Day Care and putting in a male Ninetales and female Ninetales. You can also put a female Ninetales and a Ditto. You can find Vulpix at: Route 7 Route 8 Route 37 Route 36, Route 37 Route 48
Yes, in Safari Zone at night. And in Route 16 and 7 also at night.
In the grass of Route 6, Route 7 and in front of Dragonspiral Tower.
There is only rainbow ponytas' in Pokemon battle arena, you can get them and find the rarely on route 7.
Both. On route 7 at night.