Route 37

Johto · Crystal

Pokémon	Type	Levels	Held	Morn4–10	Day10–18	Night18–4
Walk
Pidgey	NormalFlying	13–15	—	20%	55%	—
Growlithe	Fire	14–16	25%	40%	40%	—
Stantler	Normal	14–16	—	—	—	40%
Ledyba	BugFlying	13	—	30%	—	—
Spinarak	BugPoison	13	—	—	—	30%
Hoothoot	NormalFlying	15	—	—	—	20%
Ariados	BugPoison	15	—	—	—	5%
Ledian	BugFlying	15	—	5%	—	—
Noctowl	NormalFlying	15	—	—	—	5%
Pidgeotto	NormalFlying	15	—	5%	5%	—
Headbutt
Pokémon	Type	Levels	Held	Rate
Hoothoot	NormalFlying	10	—	50%
Exeggcute	GrassPsychic	10	—	20%
Ledyba	BugFlying	10	—	15%
Spinarak	BugPoison	10	—	15%
Headbutt · rare trees
Only from a rare tree: one tree in ten, picked by the tree's position and the player's Trainer ID. Headbutting a rare tree starts a battle 80% of the time; four trees in ten start one 50% of the time, and the rest 10%.
Pokémon	Type	Levels	Held	Rate
Hoothoot	NormalFlying	10	—	50%
Pineco	Bug	10	—	30%
Exeggcute	GrassPsychic	10	—	20%