This Infestation zone has five Nests, and several crier (infected crow) nests. I suggest bringing a lot of molotovs, the crafting materials for creating molotovs, and at least your crossbow with incendiary bolts. You don’t need to burn the crier nests to clear the Infestation Zone but keeping them around can be dangerous, especially with the territorial crows flying about.
Inside a delivery van along the side of the road.
Under the bridge, beside the train tracks.
Under the bridge as well, inside a derailed train car.
Inside a trailer along the road, past the tree blocking the road.
In a small Cave along the train tracks.