Thread: Move to Roost based on ID/Age?

(Operating System PC on Firefox! Though I believe this still happened on Mobile Samsung Internet...)

I'm not really sure if this is an actual bug, or just how things work. But when I move a chicken to a new roost (or buy a chicken and it goes into unsorted), it seems like it's vaguely based on ID or the age of the chicken? I feel as if it makes more sense to have the chicken be plopped onto the end.
(this is something I noticed happening a lot with my idols folder, but i've never thought to take a screenshot until after i resorted)

Here's an example of my unsorted folder; I just bought Goof and instead of being put after (unnamed), she was put directly before


Edit: I traded for a chick and it happened again