Used in:

• Screeching Circle Fly (Fishing)
• Screeching Dry Fly (Fishing)
• Screeching Treble Fly (Fishing)
• Axebringers Bracer Material (Pottery)
• Miners Sleeves Material (Pottery)

Dropped by (***no spawn table):

• Qeynos Hills
• ***a giant bat (45%)
• Kithicor Forest
• a giant bat (69%)
• Nagafen's Lair
• sonic bat (68%)
• Misty Thicket
• a giant bat (30%)
• Qeynos Aqueduct System
• a shark (11%)
• The Feerrott
• a giant bat (45%)
• Butcherblock Mountains
• a giant bat (30%)
• Erud's Crossing
• a vampire bat (74%)
• a vampire bat (75%, 1 avg drops per kill)
• The Warrens
• a cave bat (56%)
• a giant cave bat (75%, 1 avg drops per kill)
• Dragon Necropolis
• a carrion bat (79%, 1.09 avg drops per kill)
• The Maiden's Eye
• ***a vampyre bat (81%, 1.14 avg drops per kill)
• a vampyre bat (81%, 1.14 avg drops per kill)