Today, I found M2 and his mate foraging in the southern part of M1's territory. He's been having a dispute with M1 over who should own this area. Today, they were eating birdseed with the doves and also feasting on the ants in the area. While observing those two, I noticed that "Little Male", M1 was sneaking up behind us.
I see you guys over there and I'm not going to tolerate this much more! (note the dark spot on his chest, it could be from fighting)
I left the area a few minutes later and within 10 minutes, I could hear the sound of two males arguing with their "kill-dee" sounds. But, M2 didn't leave just then. However, eventually, M1 won the fight and M2 was forced back into his territory without his mate. I guess she just wasn't finished feeding yet. I don't know if M1 and the female (F3) mated, but M2 was all alone in his territory for a long time, calling for her.
I've never seen or heard of an example of a "companion call" on any of the other websites. It's a lot like the alarm call, but shorter and softer. It's kinda like the difference between "beep" and "cheep" with the companion call being the "cheep" and a bit shorter. Poor guy, he seemed to be asking for my help in getting her back, walking up towards me, showing now fear. But, this is something he has got to deal with himself.