Another egg

We still have our three pairs of swifts in boxes 1, 2, and 3. Box 3 already have two eggs, and yesterday box 2 laid another egg, so that's four altogether and both pairs are now incubating. As is the starling in box 4 but we're unable to see the nest as there is so much bedding blocking the camera view! The pair of swifts in box 1 have not started making a nest yet and are mainly using it as a roost.