We have several Lyrebird mounds in the bush on our property so I set up a trail camera near one of them. I checked the footage to find a male had used it and in one of the videos a female shows up as well. I was very careful that I did not access the camera when any of the Lyrebirds were around. I have posted a video to youtube for viewing https://www.youtube.com/watch?v=fjR1NW7Lz_s&t=64s
A very good image of a male Lyre Bird displaying on its mound or arena and each male has several such sites in its territory. There is almost always at least one female in close proximity. The display is very noisy with wing and tail movements and calls.