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Large monster · Bird Wyvern

Yian Kut-Ku

Bird wyverns with impressive beaks, big ears, and an appetite for insects. Skittish by nature, they will still put up a fight if threatened.

Known habitats
Iceshard CliffsScarlet Forest
Variant
Frenzied Yian Kut-KuTempered Yian Kut-Ku
Weaknesses Rewards Equipment

Weaknesses

Hitzone values
Best element
Ice 40
at the neck
Stun
Head 100
the only part that takes stun
Part Sl Bl Pi St Fi Wa Th Ic Dr
Head 56 75 80 100 10 15 20 30 0
Legs 28 28 30 0 5 5 5 5 0
Wings 80 42 70 0 5 10 25 15 0
Neck 42 42 45 0 10 25 30 40 20
Tail 60 56 50 0 5 15 15 20 0
Torso 66 63 60 0 5 15 15 20 0

Base state. Highest value per column underlined.

Parts

head Breakable
Breaking rewards Kut-Ku Ear at 100% , Kut-Ku Ear at 100% .

Rewards

11 materials · 55 listed routes
Kut-Ku EarHighest listed 100% · BROKEN PART
100%Broken part · head21%Target reward13%Carve10%Target reward8%Target reward
Bird Wyvern GemHighest listed 100% · TARGET REWARD
100%Target reward7%Target reward5%Carve3%Target reward
Kut-Ku Scale+Highest listed 50% · WOUND DESTROYED
50%Wound destroyed40%Carve · rotten30%Carve23%Target reward20%Target reward
Kut-Ku CarapaceHighest listed 50% · WOUND DESTROYED
50%Wound destroyed30%Carve · rotten23%Carve23%Target reward20%Target reward
Wyverian Bloodstone ShardHighest listed 50% · TEMPERED WOUND DESTROYED
50%Tempered wound destroyed
Wyverian Bloodstone (S)Highest listed 35% · TEMPERED WOUND DESTROYED
35%Tempered wound destroyed
Kut-Ku WingHighest listed 33% · TARGET REWARD
33%Target reward18%Carve16%Target reward15%Target reward
Inferno SacHighest listed 30% · CARVE · ROTTEN
30%Carve · rotten18%Target reward15%Target reward
Giant BeakHighest listed 21% · TARGET REWARD
21%Target reward11%Carve10%Target reward8%Target reward
Wyverian BloodstoneHighest listed 15% · TEMPERED WOUND DESTROYED
15%Tempered wound destroyed
Yian Kut-Ku Certificate SHighest listed 8% · TARGET REWARD
8%Target reward

Hunt notes

The Yian Kut-Ku's superior hearing comes with great sensitivity to sound. A loud noise is sometimes all it takes to stop them in their tracks, reason enough to make liberal use of sonic bombs. But there's a catch: once a Yian Kut-Ku comes back to itself, it's going to be really flocking mad and come at a hunter even more viciously than before.

Equipment

79 weapons · 4 armor series
Kut-Ku α Armor series · 5 pieces · Rarity 5 Kut-Ku β Armor series · 5 pieces · Rarity 5 Nu Udra α Armor series · 5 pieces · Rarity 7 Nu Udra β Armor series · 5 pieces · Rarity 7
Beak Axe I R5 Chicken Decapitator I R5 Kut-Ku Anger I R5 Kut-Ku Pair I R5 Kut-Ku Pick I R5 Kut-Ku Pike I R5 Kut-Ku Stave I R5 Kut-Ku's Song I R5 Yian Kut-Ku Cannon I R5 Cornpopper R6 Beak Axe II R7 Chicken Decapitator II R7 Kut-Ku Anger II R7 Kut-Ku Pair II R7 Kut-Ku Pick II R7 Kut-Ku Pike II R7 Kut-Ku Stave II R7 Kut-Ku's Song II R7 Quematrice Arco IV R7 Quematrice Cuchillo IV R7 Quematrice Culebrina IV R7 Quematrice Espada IV R7 Quematrice Lanza IV R7 Quematrice Lima IV R7 Quematrice Silexes IV R7 Tasty Blades R7 Yian Kut-Ku Cannon II R7 Arachnoscythe R8 Big Slugger R8 Binder Mace R8 Blood Scream R8 Buster Blaster R8 Crazed Melody R8 Death Venom Hammer R8 Debilitating Torpor R8 Destructive Torpor R8 Dual Kut-Ku R8 Esperanza Axe R8 Esperanza Blade R8 Esperanza Bow R8 Esperanza Cannon R8 Esperanza Daggers R8 Esperanza Edge R8 Esperanza Glaive R8 Esperanza Gunlance R8 Esperanza Hammer R8 Esperanza Horn R8 Esperanza Lance R8 Esperanza Rifle R8 Esperanza Strongarm R8 Esperanza Sword R8 Final Battleaxes R8 Glass Royale R8 Immolator Blade R8 Kut-Ku Cantabile R8 Kut-Ku Counterattack R8 Kut-Ku Thwap R8 Lala Acanthopelm R8 Lala Aviculari R8 Lala Eumenophor R8 Lala Harpactirs R8 Lala Ornithocton R8 Lala Selenocosmi R8 Lala Stromatopelm R8 Nerscrapper R8 Nershock R8 Nerskiller R8 Poison King R8 Rooster Decapitator R8 Sawbill Axe R8 Solid Gunberd R8 Stealth Glaive Redux R8 Strange Kut-Ku Stave R8 Super Kut-Ku Cannon R8 Tanksorcerer R8 Toucan Pike R8 Vanguard's Pride R8 Venom's Kiss R8 Viperine Saber R8

Field guide

Bird wyverns with impressive beaks and large ears. They tend to be skittish but will sometimes initiate attacks on a perceived threat. Yian Kut-Ku arrive in large groups during the season of Plenty in the Scarlet Forest. The absence of eggs or young suggests that the purpose of this is not to breed, but rather to seek out mates and nourishment.