From Monster Hunter Wiki

Source: [1]

[edit] Elder

• Reward For Breaking:
  • Ears-
    • Kut Ku Ear X1 (50%)
    • Kut Ku Scale X3 (50%)
• Carve:
  • Body-[X3]
    • Kut Ku Shell (50%)
    • Kut Ku Webbing (32%)
    • Kut Ku Scale (13%)
    • Giant Beak (5%)
• Capture:
  • Kut Ku Shell X1 (33%)
  • Screamer (24%)
  • Medium Monster Bone X2 (20%)
  • Flame Sac X1 (20%)
  • Giant Beak X1 (3%)
• Drop:
  • Wyvern Tears (74%)
  • Kut Ku Scale (16%)
  • Kut Ku Ear (10%)

[edit] High Class

• Reward For Breaking:
  • Ears-
    • Kut Ku Ear X1 (50%)
    • Kut Ku Long Ear X1 (25%)
    • Kut Ku Scale+ X3 (25%)
• Carve:
  • Body-[X3]
    • Kut Ku Scale+ (50%)
    • Kut Ku Carapace (25%)
    • Kut Ku Webbing (10%)
    • Giant Beak (10%)
    • Splendid Beak (5%)
• Capture:
  • Kut Ku Carapace (43%)
  • Monster Bone+ X1 (27%)
  • Screamer X2 (17%)
  • Flame Sac X1 (10%)
  • Splendid Beak X1 (3%)
• Drop:
  • Wyvern Tears (37%)
  • Wyvern Sobs (37%)
  • Kut Ku Scale+ (16%)
• Long Kut-ku Ear (10%)

[edit] G-Rank

• Drop
  • Lucky Kut-Ku Ear (?)