All of the chicks are dead. Sometime on Saturday, something happened to the mother. Most likely, the neighbor's cat ate her. The babies had been thriving and nearly ready to leave the nest, but without mama bird, they starved to death. It was awful today, looking into the nest and seeing two dead chicks and one still barely alive (it has since died). I'm just crushed. I was so happy to have a nest on the porch again. Now I hope there won't be nests in the future. It'll break my heart. People need to keep their cats indoors!