Green Finch and Linnet Bird
Kurogane looked up from the book he was reading as he tried to find the person singing in an incredibly high-pitched soprano voice. He turned his head to an open window where a young blonde bay was singing to a green bird in a golden cage. Kurogane sighed in annoyance.
"Hey, you," he huffed at the blonde. "Quit disturbing the peace!"
The blonde gave him a scandalized look and then plastered a huge grin to his face. "So sorry, Mr. Black!"
Next thing he knew, Kurogane hurled his book at the blonde head.