We have a small stream running next to the house and would like to put a
bird bath in our yard near it.

Would it be possible to find an *inexpensive* pump that could pump water
from the stream into the birdbath?

The only problem is that it needs to go about 30 feet, and over a 4' earth
berm. Can small inexpensive pumps do that?

Does it have to be a submersible pond pump or can it be something else?

Suggestions?