I discovered I have a robin nest in the saucer magnolia in front of the house!
I'm of two minds about this.
First, I do like birds in general, and I like to see young birds and nests. I feed finches and cardinals and hummingbirds. I was going to cut down a 5' unwanted cedar sapling once, but stopped because I found a hummingbird nest in it. That cedar is still unwanted and 15' high today, but if hummers like to nest in cedars, I will leave the cedar alone.
Second, I don't actually like robins. They eat my worms and I really DO like worms. They are good for the soil, do my garden nothing but good, and they don't bite. I actually get annoyed watching a half dozen robins marching across the lawn in a row pulling up worms every few feet.
I LIKE my lawn worms. I even go out after a rainstorm and pick them up off the driveway to toss back onto the lawn. I rescue them from puddles. When I am weeding the garden and they are frightened up to the surface by the disturbance, I toss them into shady spots under flowers so they can go back about their business.
I won't disturb the robin nest myself, but if something natural happened to it, I wouldn't mourn...