The birder at Bird Sort has a good catch. He caught a lot of birds, and focused on young chicks that had just learned to fly. He put the caught catch in boxes and went to negotiate the sale. While the poacher is establishing distribution channels, you can save the birds. To do this, you need to distribute all the birds into boxes, and one box should contain birds of the same color. Move the birds until you get the result. As soon as the box is filled with birds of the same color, they will fly to Bird Sort.
