The first is surely D. maculata maybe ssp fuchsii? and the last pic looks like what I have as elata but I think isn't, could be foliosa. I have hybrids among the lot and yes, they do "pop up" is a very pleasant way. It's nice to have what are, in effect, naturalized orchids about the garden, sometimes in my grass or maybe in a crack in a concrete path, often in a cushion of sometimes or a trough.
