Yes, BOWERBIRD is a Scrabble word!

Letter values in Scrabble US: B 3, O 1, W 4, E 1, R 1, B 3, I 1, R 1, D 2.

Is it a valid word?

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

any of various birds of the Australian region whose males build ornamented structures resembling bowers in order to attract females