It's a Bird could be disqualified from his April 4 victory in the Oaklawn Handicap (gr. II) as the result of a positive test for the prohibited substance naproxine, an anti-inflammatory medication.
According to model rules of the Association of Racing Commissioners
International, naproxine is a Class 4 drug for which the recommended
penalty is disqualification and forfeiture of the purse and a fine for
the trainer. It's a Bird earned $300,000 for owner Edmund Gann with the
Oaklawn Handicap victory.