There are two bands with the name Winter Moon.
There are three bands with the name WinterMoon (eg the black metal/ metal bands), check that page if you''re looking for them.

(1) Winter Moon (Melbourne, Australia) plays ''Blues Soul Psychedelic Rock ''n Roll''
"From humble beginnings as an acoustic duo, in just one year Winter Moon have gone from open-mic nights in dingy hotels with beer-stained carpets to headlines at some of Melbourne’s finest music venues- where not only the carpets but the walls, ceiling and stage bear the odd, brown markings of beer and music-fuelled revelry.
Now operating as a five-piece, including the usual array of members- plus a flute, Winter Moon take their cues from some of the greatest rock and blues bands of the ‘60s and ‘70s. With an enthralling live show, fusing psychedelic blues-rock with a modern edge and vintage sensibilities, this band has forged itself a solid presence as an original force of music in the Melbourne scene."
http://www.facebook.com/wintermoonband
http://wintermoonband.bandcamp.com/

(2) Winter Moon (UK) was an early project from several individuals. Their vocalist has several other solo projects.
They have two known releases as a band.