According to RYR chief pilot memo, F/O was pilot flying and go-around was initiated at 200 AGL, as big flock of starling rose up immediately in front of the aircraft. However, 737's go-around performance was no match for starlings' STOL capabilities and multiple (now there's euphemism) birdstrikes occured that caused both engines to fail. Capt took over control and landed the aeroplane while F/O called for equipment.
If official report confirms this version, and personally I'm 90% sure that it will, then this crew deserves every award for extraordinay airmanship that exists.