We have a bird box with camera in the garden. Initially there were 7 blue tit eggs and 6 hatched. After about a week 1 died then a few days later a further 2. It looked like 3 were doing really well with both parents feeding then another died.
Today the last 2 died . Yesterday they looked healthy and were feeding and begging for food. What on earth has happened? The parent birds are going crazy calling and going back and forth to the nest. It is tragic. Happy to receive any replies.