Related Clues:

• Result of lack of sleep, maybe
• Signs of insomnia, perhaps
• Feathered mouse-hunters
• Faces the pitcher
• Belfry inhabitants?
• Carlsbad Caverns denizens
• Night predators
• Some may be spotted
• Butterfly relatives
• Messengers at Hogwarts
• Is at the plate
• Night hunters
• Dugout supply
• Hoot givers
• Fliers in caves