There are multiple artists named Buffalo:
1) A heavy metal band from Australia
2) A heavy stoner metal band from Argentina
3) A heavy metal/NWOBHM band from England.
4) A heavy alternative rock band from Logan, Utah, USA. 1) Buffalo are a proto-heavy metal band formed in Sydney, Australia in 1970, although initially performing under the name Head (changed the following year, due to its sexual innuendo and unmarketablity).

Read more about Buffalo on Last.fm.