Because the bird can eat the caterpillar and convert it's mass into usable food energy.
Food chains. If the caterpillar were to all die out, some bird species will either die out or reduce in number due to the lack of a food source, and in turn will affect some other carnivorous predators as there are less birds to eat and likewise for the next predators up the food chain etc.
you really need to find an answer for this questonno its i hard question
Yes so the birds have food and water. (Have both a water and food source)
they describe what animals eat what like a caterpillar eats grass then a bird eats the caterpillar then the cat eats the bird. :) hope it helps
an chicken and a bird
What is a mouse bird? Anyway its nich is to be food for it's pray!
This should be fun! ant eats crumb, bird eats ant, snake eats bird, hawk eats snake, lion eats hawk, human eats lion. (This is just an example don't get worried about eating a lion!!!)
Caterpillar is not a bird since it does not have a beak, which is a common body part in birds. It is an insect which is not fully grown and developed.In fact most birds feed on insects including the caterpillar.
Yes, it counts as vegetation. Caterpillars eat leaves, bird eats caterpillar, so on... so on...
black birds
Yes, caterpillars eat leaves as a food source. If they are not eating leaves they may not be healthy.
well a deer eats its eggs. a grey wolf eats a deer but I'm not sure what eats a caterpillar. I think its a bird though!!