Do this several times, and Naydra will have fully recovered and will invite you to shoot its body again and grant you a scale, which can then be dropped into the Spring of Wisdom to unlock a Shrine.
Wait on the grassy area on the south side of Lanayru Bay and Naydra will spawn from the western sky.
So, it is important to know when and where the dragons appear, and how best to go about collecting their items.
No porn There's subreddits for that and this isn't one.