Druid class chain quest missing

Hello
I started my quest chain like long time ago,and recently i somehow abandoned one of the quests because i failed it,its the 2nd quest of three "essence" quests,where you have an item(whistle) to call the sparrowhawk after you kill the npc,but now i dont have the whistle,nor i can find the npc for quests,its being taken from Blade ednge mountains - Arthorn Windsong,but i have no quests there.
It says Arthorn Sparrowhawk ( you return quest to him/it) is located in terokkar forest,but its not on the pointed location,so what can i do now?
p.s. Some GM sent me to bugtracker,but i wouldn;t even bother