Quagmire's eyes widened as his Eagle's eye activated, he counted how many there were, and saw that there were five Flying Man Eaters. Those are ghouls who have their torsos severed and fly along with their upper bodies.
He fought a few before, and knew that those things were very tricky to deal with, because of the fact that he is in the forest that has a space that is spaciously wide from each tree, most likely from competition from each trees, and its hard for him to see them, while it is much more easier for them to see him, all they need to do is fly high and look.
Thankfully, he had the Eagle's eye, which he could use to see them accurately with good enough details and information for him to deal with them. Moreover, the moonlight that is coming from the moon is much better and more than enough; in fact, it is much brighter this night than it was a night ago.