MLG ACFT WAS HIT BY 4 CANADIAN GEESE.

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WE WERE LEVEL AT 4700 FT MSL; ABOUT 7.5 NM DUE W OF RWY 8 FOR LUBBOCK AND HAD JUST SELECTED FLAP POS 5. AT APPROX 190 KIAS; WE WERE STRUCK BY A BIRD IN THE L RADOME/CAPT'S WINDOW. THE VISION OUTSIDE MY WINDOW BLOOMED FROM BIRD RESIDUE SO I ADVISED THE FO TO MAKE THE LNDG. AT THIS TIME; I FELT THERE WAS LITTLE DAMAGE AND BELIEVED ALL THAT WOULD NEED TO BE ACCOMPLISHED WOULD BE AN INSPECTION AND WASH. WHEN FLAP POS 15 WAS SELECTED ON THE ACFT THE FO RPTED AN UNWANTED ROLL. I TOOK CTL OF THE ACFT; BUT COULD NOT DETECT ANY UNWANTED ROLL; JUST NORMAL ROCKING FROM LIGHT TURB. I GAVE THE ACFT BACK TO THE FO AND HE ALSO AGREED EVERYTHING WAS NORMAL. WE COMPLETED A NORMAL APCH AND LNDG. ON TAXI IN; AS WE APCHED THE TERMINAL; WE COULD SEE A WING STICKING OUT OF THE RADOME. A WALK AROUND INSPECTION REVEALED A 3 FT CRACK IN THE RADOME; A 6 INCH BY 8 INCH HOLE IN THE #2 AND #3 KRUGER FLAP; DAMAGE (DENTS) TO WING LEADING EDGE INSIDE BOTH ENGS; DENT IN #2 PYLON; 2 FT BY 2 FT TO R WING FILLET AREA. I WAS AMAZED AT THE DAMAGE BECAUSE WE HAD NO PRESSURIZATION OR FLT CTL PROBLEMS. WE HAD HIT AT LEAST 4 CANADIAN GEESE.