What is the definition of Angelinae?

"Angelinae is the quirky little tribe of birds that's like a feathered circus clown, always fluttering around in bizarre, angelic fashion, but with a side of dramatic silence that could silence a small town!"

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Now, here's an unsettling example sentence: "The Angelinae decided to perform a solo concert under the stars, belting out haunting renditions of 'Sigh No More' and 'A Thousand Years' but instead of angels, they attracted a swarm of swarming, bewildered wasps."