Psychological Warfare?

So today the weather was warm enough that the chickens spent the better part of the day rummaging around in the barnyard, digging through manure and hay. I went out to give the heifers hay in the afternoon and give the chickens some scratch grain and found one rooster crowing, incessantly. That's not entirely uncommon, but he was being VERY persistent. I happen to turn slightly and caught site of the hen house out of the corner of my eye. That's when I noticed the "chicken door" was shut. We have a vertical sliding door made of scrap plexiglass and we prop it open with a stick. The whole lower portion of the hen house is a separate area, essentially enclosed in greenhouse material (mostly transparent) to gather heat from the sun and provide a lounge area and extra nest boxes. I quickly went over to open the door only to find just ONE bird inside.... the other rooster! All of the other hens were out frollicking, along with the #2 rooster, who was making so much noise, all right there for the #1 rooster to see. Now that little chicken door hasn't gotten knocked closed in quite a long time, so I ask you, was it intentional? Did #2 trap #1? Is this war?