Bible.com Keep The Feast, day 19
The locusts came up over all the land of Egypt and settled on the whole country of Egypt, such a dense swarm of locusts as had never been seen before, no ever will be again.
Even when God works using earthly means, He shows his supernatural power. The enormous clouds of locusts we see in BBC documentaries are scary, but they are nothing compared to the swarm God brought against Egypt. Our God is an awesome God.