Blue tits continued

Today I had to walk our daughter to school, so I could not resist a quick stop at the nest box. I was pleased to see that both blue tits were flying too and from the nest box. Although only one bird was in he box at one time, they were close together when both were outside. This included foraging and chasing off other blue tits that came too close. Just before I left the park I had an observation that confirmed that they were nesting. One of the blue tits was one the nest box calling. The second blue tit flew to the box with nesting materials in its beak.