Related Clues:

• Night fliers
• Barn birds
• Avian colonists
• Types of herons
•     Temple University team, with 'the'
• Forest hooters
• Birds with valuable plumes
• 'Great' birds
• Snowy and gray?
• Birds with rare binocular vision
• Hogwarts messengers
• Barn and screech
• Barn and screech, e.g.
• Nocturnal hunters
• Mouse catchers