after some animated discussion and without hope of success. We decided to put the baby birds in another deeper cardboard box. Together with the clay and soft cotton wool. With a few nails in the wall and a few holes in the improvised nest. The box was attached to the wall with its little occupants inside. We worried that our handling of the tiny chicks had left the odor of humans on them. Would the parents. When they returned. Become suspucious. Or even reject their yoyng ones?