Quads. When we moved in here last summer, I was looking out the side window in our bedroom one day and noticed there was an empty nest on top of the corner post of our privacy fence. I watched it some and never saw anything in it. Then a couple weeks ago, Prophet looked out and saw a little blue egg in it. The next day there was another egg, and then two days later, two more. We've all watched with anticipation and a perfect view from the bedroom window for the last couple weeks. I looked out early this afternoon and the mama was standing in her nest, and I didn't see anything blue peaking out from under her. When she flew away, I could see there was definitely no eggs there, and there appeared to be little pink lumps laying there, but they weren't moving. I was afraid maybe they were dead, but I called the boys upstairs and told them to be quiet. While we sat at the window and watched the nest, the mama came back with food. In a flash, three huge (little) bright orange mouths opened wide for food. It was so cool to watch, even if they are the ugliest little things on the planet. I'm afraid one of them didn't make it because I've only seen three mouths and there were four eggs there. The kids are excited about the new babies.
BTW, mama robin's aren't very protective. Our little mama flies away and leaves her babies alone even if the phone rings when the window's open. She's a little chicken-little.