How to find Headbutt Tree Pokemon like Heracross in GSC

This video shows how to catch Headbutt Tree Pokemon in Pokemon Gold, Silver and Crystal using TShadowKnight's Headbutt Grid. Reddit of TShadowKnight https://www.reddit.com/user/TShadowKnight Headbutt Grid tool http://37.97.147.73/Headbutt%20Grid.htm Red star will give rare encounters at 80% encounter rate Blue circle will give normal encounters at 50% encounter rate Unmarked will give normal encounters at 10% encounter rate Megahorn that Like Button. Be careful, dislikes counts as a miss. ;-; Catchable Pokemon include - Heracross - Pineco - Execute - Spearow - Ekans - Aipom - Spinarak - Ledyba - Ledian - Hoothoot - Noctowl - Caterpie - Metapod - Butterfree - Weedle - Kokuna - Beedrill