Actually the crux of this mission wasn't in finding the Jobberknoll, but finding a tree they loved and first scaring away the threatening Bowtruckle. Most of the trees in the forbidden forest were withered and dead, only the protection of a Bowtruckle could give a tree a chance at survival. Therefore, the Jobberknolls loved to reside on a tree that was protected by Bowtruckles. Once he found the tree, then it wasn't hard to get the birds to the bait.
Sheyan brought back a bag of birds, and Hagrid naturally praised him. Because the mission requirement was only capturing one, yet he actually brought back a nest. Thus his impression soared from 276/1000 to 476/1000. But it was only midday, Sheyan wanted to strike when the iron was still hot and accept more missions. But at this moment, the enchantment bell from Hagrid's house suddenly notified him of a visitor. Sheyan could only return to camp.