you through a pokeball at it and hope for the best
In the croca tunnel
If you want to get a doduo in Pokemon platinum there are two ways: 1.you can catch it in another game (Fire red leaf green etc.) then transfer it to platinum (look in instructions on how to transfer Pokemon.) 2.you can talk to dawns sister in her house she will say that there's alot of (a type of Pokemon) at a sertain rout then if you go there youcan catch it but these inly last a single day so act fast. problems:she might not say doduo just keep talking to her until she does.
level 31
Yes, but only by HM02.
talk to dawns sister in sangem town,she might say there are doduo at route 201 dawn or lucasue which there one ( i have lucasue)
You can't. You have to find and catch a wild doduo in the safari zone and evolve it.
First catch a Doduo which can be found in the safari zone then train it to level 33.
Doduo evolves into Dodrio at level 31. http://www.serebii.net/pokedex-rs/084.shtml
You get it in 'Ollie's' last mission with the ... He asks you to catch it, but runs quickly so ride a Doduo.
Catch a Doduo or Dodrio in the Safari Zone. But you might have to catch a whole bunch of them since there is only a 5% chance that a Doduo or Dodrio will hold a Sharp Beak.
A Weedle.
Doduo are found in the Hoenn Safari Zone. Area 1 (near entrance): 5% chance Area 2 (southwest area): 10% chance Area 3 (northwest area): 15% chance