Yes, PHEASANTS is a Scrabble word!

Letter values in Scrabble US: P 3, H 4, E 1, A 1, S 1, A 1, N 1, T 1, S 1.

Is it a valid word?

PHEASANTS is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

large long-tailed gallinaceous bird native to the Old World but introduced elsewhere
flesh of a pheasant; usually braised