Owls would have no problem spotting the Twit Twoo collar with their eyesight.
Not 100% sure what breed of owls these could be and they look too 'friendly' for me to visualise them swooping down and eating some rodent.
Without even running to Google I do know it's Tawny Owls that make the Twit (made by female Tawny Owls) and Twoo (made by the gentlemen Tawny Owls) calls. That's the sum total of my owl knowledge - sorry.
Single loop design house/ tag collar made with tough grosgrain trim securely stitched on to lime green high quality webbing.
Size available: Standard (28cm/11" to 47cm/18.5")
Twit Twoo House/ tag Collar
Width: 25mm (1 inch)