I LOL'D so hard.
You can find it pretty much anywhere in the first few routes
Taillow isn't in Leaf Green, just emerald Sapphire and ruby
Taillow evolves at level 22.
You can't catch a Taillow in Pokemon Platinum, but you could catch the later evolution (Swellow) using Poke Radar on Route 213, and then breed it to get a Taillow.
When you are at cherrigove city go west, and do surf, go north while surfing, you will find two trees, use headbutt and finally find taillow. Nadine, Egypt
The Pokemon taillow is a Flying Type
Mudkip zigzaggoon taillow train them to about level fifteen
Taillow is #276 in the national pokedex, and it is a Normal-Flying type Pokemon.
swellow
i think at level 32
you need to transfer a taillow from either ruby, Sapphire or emerald on a Nintendo ds lite.
level 22
22