He looked human, except for the feathers. His skin tone was actually a light brown, similar to many humans, but instead of eyelashes and eyebrows he had very small fine feathers and his eyes were a brilliant teal, not unlike the feathers running down his back.
The bird man reached behind himself and pulled something out of his tail area. He held it close to the glass so Skyleen and Arla could see it well. It was a clear iridescent fan-shaped scale. The curved edge looked razor sharp.
He moved, shuffling his feet and sweeping his feathered tail and then shot the scale through the air until it tapped the glass. He did it several times until understanding dawned.
The bird man would shuffle his feet, wave his tail and those sharp scales would fly. He intended to fight back against their captors.