The story starts with Carlos perching on top of the box, calling to his mate.
Our other main theme is again from Box1, but is rather different. Until this year, we had only seen the bluetits mating once and that was in the trees beside the nest box. Today is the second time this has taken place inside the nest box and because it is so unusual, we are concerned that it may mean that the pair do not see this box as a potential nesting site. The fact that the male, rather than the female is roosting in the box adds to this feeling.