Yes, BUDGERIGARS is a Scrabble word!

Letter values in Scrabble US: B 3, U 1, D 2, G 2, E 1, R 1, I 1, G 2, A 1, R 1, S 1.

Is it a valid word?

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

small Australian parakeet usually light green with black and yellow markings in the wild but bred in many colors

Also: grass parakeet, shell parakeet, melopsittacus undulatus.

Not playable in Scrabble US: BUDGEREEGAH, BUDGERYGAH.