The bird is still hanging around

After I got home from work tonight it was still light and pleasant out, so Jen and I had a glass of wine, talked and enjoyed the evening. We discovered that the baby bird we have been watching still hangs around the nest, though we haven't seen the parents. Tonight he chirped assertively for about 10 minutes at dusk before crawling into the next and (we presume) going to sleep. We took that as a signal to come inside.