Route 1
Pokemon Red and Blue
| Pokemon | Levels | Method | Rarity |
|---|---|---|---|
 Pidgey | 2-5 | Walking in tall grass or a cave | 50% |
 Rattata | 2-4 | Walking in tall grass or a cave | 50% |
Pokemon Yellow
| Pokemon | Levels | Method | Rarity |
|---|---|---|---|
| Pidgey | 2-7 | Walking in tall grass or a cave | 70% |
| Rattata | 2-4 | Walking in tall grass or a cave | 30% |
Pokemon FireRed and LeafGreen
| Pokemon | Levels | Method | Rarity |
|---|---|---|---|
| Pidgey | 2-5 | Walking in tall grass or a cave | 50% |
| Rattata | 2-4 | Walking in tall grass or a cave | 50% |
Pokemon HeartGold and SoulSilver
| Pokemon | Levels | Method | Rarity |
|---|---|---|---|
 Furret | 6 | Walking in tall grass or a cave | 10% |
 Hoothoot | 2-4 | Walking in tall grass or a cave | 45% |
 Minun | 3 | Walking in tall grass or a cave | 20% |
| Pidgey | 2-4 | Walking in tall grass or a cave | 90% |
 Plusle | 2 | Walking in tall grass or a cave | 20% |
 Poochyena | 2 | Walking in tall grass or a cave | 40% |
| Rattata | 2-6 | Walking in tall grass or a cave | 55% |
 Sentret | 3 | Walking in tall grass or a cave | 40% |
 Shinx | 2-3 | Walking in tall grass or a cave | 40% |