Birdy is valid Words with Friends

Is birdy a scrabble word?
Official Scrabble Players Dictionary NO
Official Tournament and Club Word List NO
Collins Scrabble Words NO
Is birdy valid Words with Friends?
Words with Friends YES

Definitions for BIRDY in dictionary:

Find what other words can be done using letters: "birdy"
https://scrabble-word.com/finder/birdy
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