What do I do with these birds nesting on my mailbox?

I moved the first nest, but the robins built another one. They chose my mailbox (attached to the side of my house). I checked my mail yesterday and there was no nest, this morning it’s back. I hate the thought of them wasting all that energy and having no place to nest when it’s egg-laying time.
What do I do?

Good for you, caring about the birds.
What i would do: get a second mail-box for the duration of nesting and fledgling.
I had phoebes nesting right by the back door. They couldn’t handle all the traffic and left, even after trying two years in a row. Their leaving was too bad, because I was expecting great enjoyment in watching the progress of nest, eggs, babies.
So maybe your robins can be more of a blessing than a nuisance?
p.s. Here police would not be right people.
Seriously, try your state’s division of wildlife, or whatever is its name there.
A veterinarian might also be a help.
Or if in U.S., your county will have an Extension Agent, listed under county’s name in phone book. They know practically everything!

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