How can the extinction of bird species create a ripple effect through the rest of the ecosystem?

The population or that bird's predation will decrease in population because their food has been removed. This bird's prey will increase in population because their predator was removed. The scale of the effects is determined on how many other food sources or predators these other species have.

Only algae, oak trees, and bermuda grass produce atp by photosynthesis i am almost positive