zapdos appears at the kanto power plant on the left side
once you save the cerulian city power plant, zapdos will appear outside of the power plant
There Isn't
you dont make poffins in soul sliver
in the radio tower
no
goldenrod
jhoto and kanto regien Pokemon
you have to get it from Pokemon platinum or diamond
Happiny, into Chansey.
in the kanto region
in the cities
you cant