Okay I think I've mentioned this before on one of your previous posts but I grew up near Prospect Park and seeing this photo took me back to being a child and being taken on that miniature railway.
Thank you for the nostalgia hit, and as always another wonderful photo ❤️
That russet patch under the wings gives it's name, but obviously is a member of the thrush family (Turdus iliacus). Only seen down my way in the colder months.
They can run a wide variety of their member's trains, on at least two distinct loops of track (pretty sure there's a third). But yes, the larger loop I think has multiple gauges.