There are two nests to burn in this area.
You’ll find one close to the bridge and near a Quen Place of Power.
The other is close to the Crossroads sign.
Both nests are Ghouls.
There is only one Ghouls nest to burn here.
This is the area you’ll need to go when you kill the Griffin.
The nest is near an Aard Place of Power toward the northwest.
We’ll start with Crow’s Perch.
In the southeast area, a single Ghouls nest dwells near the Burned Ruins and Cockatrice Lair dungeon.
12Mudplough
Mudplough will present you with your first Rotfiend nest, and a Devourer.
They can be quite nasty.
The nest is on the northeast island, there are two good chests there, as well.
You’ll find Harpies and an Erynia there.
The other is a Rotfiend nest found in the southern point of the northern area.
The Nekker nest is located by Codgers' Quarry.
They’re both near The Grotto.
Also in the eastern area are four Nekker nests, two also contain Nekker Warriors.
Surprisingly, Fyke Isle doesn’t have any nests but the northernmost area of The Mire does have one.
It’s a Ghoul and Alghoul nest by the Boatmakers' Hut.
There will also be a Drowned Dead there.
7Grassy Knoll
Now we’ve migrated intoNovigrad.
The nest is near Drahim Castle.
Then once you get close to Ursten, you’ll encounter your first two Endrega Warrior nests.
6Kaer Trolde
In Skellige, there aren’t that many monsters nests around, surprisingly.
The first ones you’ll find are on Kaer Trolde, in the southern area.
There, you’ll discover two monsters nests located close to the Crossroads.
One is a Drowner and Drowned Dead nest and the other is full of Sirens and Ekhidna.
5Ofrithrdarl
In the southern part of Ofrithrdarl, you’ll discover a Harpy nest.
The nest is on the outskirts of the village of Fyresdal.
But watch out for the many Sirens and Ekhidnas in the area.