https://gyazo.com/91424b38bfc4d6aba9fa53073ef11759

https://gyazo.com/9f26ba599b214dd2204cf032b4bae93e

Ive gotten a 60 skeletal wyvern task and half way ive gotten 4 crystal bows, the first two ive gotten on the 14th kill and the rest up until i had 16 kills left. In the wiki it says 1 in 100

And previous task ive gotten a 45 skeletal wyvern task and got 2 c bows. Is this a bug or just pure luck?