How to search for layered images on Bridge?

Hello,

I need to identify layered tifs from a batch of images, and wondered if there is a way of using Bridge to search for these, without having to open up images individually to check for layers on Photoshop. Is there a piece of metadata I can search for that reliably identifies tifs with layers as opposed to flattened ones?

I need to locate them from a batch of thousands, so any help would be much appreciated!