Caught in the Act

Listen closely!

What wild beast is devouring the butterfly bush?

A voracious avian?  A behemoth butterfly?
 A colossal caterpillar?

Alas, it's the elusive and industrious
Blonde-Bellied Burnished Twigshredder!

(And I'll bet you thought my dressing like a lumberjack at Christmas

was just a random novelty!?!)