Meryl's bird box

Same here. Have not had a bird even look in the box after the chicks have fledged for the rest of the year. I found someone on another forum wrote from 2009 and had the same thing happen and the female laid 2 eggs on the same day after the chicks had fledged. Must be more common than we think but people don't log or collate their research in one place so difficult to find out more.