Crossing the Road
That's what I was thinking too.While we can't read too much into it, that suggests to me that the hens that didn't know the roo was gone were just trying to reconstitute their flock, and the others didn't care because they knew he was gone. Still speaking from ignorance here, so take it FWIW.
I thought it was interesting that given a choice, they didn't stay in the coop they had been in for over a month, or stay together. 6 hens
I have 4 coops and separate for breeding. Usually around 10 hens and a roo. When I am done collecting eggs for hatching I open the gates between 3 of the yards. The 4 th yard the hens can get out but the opening is small enough the roo can't get out.. sometimes they switch coops they sleep in.