This bird was at least the size of a crow, possibly a bit larger but not significantly so. Watch a video of this bird here -> https://youtube.com/shorts/hFLapFI7xIE?si=L-Z3gH4TdUVloEOO
There were many of these robin-sized birds that quickly flew away from the ground the moment I arrived at the park. They flew up into the trees and kept a good distance. They had brownish backs with a white spot just above their tail feathers.