Crows startled by Survivors within 20/28/36 meters alert you with a Loud Noise Notification.
Spies from the Shadows has a cool-down of 5 seconds between alerts.

Instead of snuffing Boon Totems you destroy them.
Destroying a Boon Totem this way reveals the Auras of all Survivors that were within its range at that moment for 6/7/8 seconds.

Grants the Undetectable Status Effect after standing still for 4/3/2 seconds and until you are moving again.

At the start of the Trial, 4 random Hooks are changed into Scourge Hooks:

The Auras of Scourge Hooks are revealed to you in white.
Each time a Survivor is hooked on a Scourge Hook, the following effects apply:

The Generator with the most Progression explodes, instantly losing 9/12/15 percent of its Progression and starting to regress.
Survivors repairing that Generator will scream, but not reveal their location.