As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOWL SMELL FROM FLIGHT DECK AIR VENTS IMMEDIATELY AFTER TAKEOFF ROTATION. SMELL WAS ON FLIGHT DECK ONLY AND SIMILAR TO SOUR MILK. SMELL CLEARED DURING CLIMB. NO SAFETY OF FLIGHT CONCERNS PRESENT. / REMOVED AND REPLACED MANIFOLD MIX IAW CRJ 900 AMM 21-22-06-000/400-801-A01. OPS CHECK GOOD. NO SMELL NOTED.