Coloring-for-Adults.com: Bird Mandala Coloring page – modern drawing for adults to color online or download. Paint the picture in accordance with your spiritual aspiration, forget about the rules for combining colors. Save the illustration or share the result with your friends. This can be done directly through the site: click “share”. Get inspired! Permission: Creative Commons Attribution-NonCommercial 4.0 License. Artist: Persimmons Studio.