We have seen foxes in our back yard occasionally. One used to come around 10 am for a while. And one came at 3 pm once.
We have seen a coyote mid day in my back yard.
Your losses are definitely not raccoon, but most folks think they only are around at nite, we used to have families of...
Predators can come any time of day, even if they usually hunt more at other times. Totally missing without a trace I would suspect a fox or coyote. Hawks may leave some but not a pile of feathers and with free ranging you may not notice them Or human.
If I am reading your post correctly...