There are so many things why the moth population is decreasing, they would get eaten a lot by birds, but sometimes their appearence can help a lot. If they have a light color, the color would be matching the daylight ground, and would not be eaten. If it had a dark color, it would help in the dark forest, ad would get less eaten. The is always a difference between light and dark moths, but their is only one way that can helped them, and that is only by the day, and place they are.
