What was found
AT 300 AGL, THE LT AIRSPEED DISAPPEARED. IT CAME BACK ON SHORTLY, SHOWING 80 KTS. FIRST OFFICER`S AIRSPEED WAS 220 KTS. LT AIRSPEED CLIMBED TO 270, WHILE THE RT DROPPED TO 120KTS. CONTINUED TO HAVE THREE DIFFERENT AIRSPEEDS & ALL CONTINUED TO FLUCTUATE BETWEEN 270KTS & 180KTS. ALL THREE WERE DIFFERENT AT ALL TIMES BY AS MUCH AS 100KTS. EIED HAS F1A, F1B, F2A, F2B ADC FAULTS. INSPECTED ALL THREE PITOT & STATIC SYS. FOUND INSECT NESTING MATERIAL & COCOONS IN ALL THREE PITOT PROBES, AT THE BACK SIDE OF THE PROBES. RECONNECTED PITOT PROBES & COMPLIED WITH PITOT & STATIC SYS LEAK CHECK. OPS CHECKED GOOD IAW FAA 43 APPENDIX E PARAGRAPH A, AND IAW 91.411 & MM 34-11-00-790-801 & 34-11-00-200-801.