Terrence looked up when he was addressed, in the middle of trying to use his knife to make the wings on his next bird more elaborate by carving (was it carving when it was paper?) feathers. He wasn't entirely sure who he was being addressed by, but it was obviously someone of importance within the Ministry. Only Death Eaters got the high-ranking jobs, so Terrence was willing to bet that he was talking to one of his colleagues.
Sometimes it would have paid off for him to be better with faces and learning names and ranks of people he didn't necessarily have to interact with, but that had always seemed incredibly tedious. Besides, his easy grin and willingness to laugh at himself went a long way towards making up for the niceties he often overlooked.
"Don't use these much in the Department of Mysteries," he said, lifting the little paper songbird to demonstrate what he was talking about. His knife was very quickly hidden again in its sheath at his wrist, though he doubted very much that it would have actually been a problem. "And yet we have whole stacks of colorful paper just going to waste. I took pity and liberated it out of boredom."
He grinned. "Don't worry, though, I only charmed them to fly, not to sting anyone. Probably wouldn't do any harm even if they did figure that part out."