How Can Tim Shield's Can The Desert Tortoise Be Saved?

In "Can the Desert Tortoise Be Saved?", Mackenzie Carro informs the reader that the desert tortoise is being endangered by ravens, but it can be reversed by using technology. In the Mojave Desert, baby desert tortoises are being gobbled up by ravens. The population of the ravens was small. But when lots of people starting living there, the population went up by nearly 700 percent. So the ravens keep on eating the desert tortoises. But Tim Shield has a solution to this problem. He thinks that he can help prevent these tortoises from becoming extinct by using technology. His first solution was that he created decoy tortoises, and each decoy emits a bad tasting odor. Then second solution was a remote controlled rover, that was cable of scaring