How to Roll Initiative in a Building

There's going to be lots of little battles throughout this building. Would you rather roll initiative every time? No, just keep the same initiative throughout. So I've got one poison bird held in my hand, my spectral hand and then there's another and two rats,. Two rats and another bird total. One bird flying around. The ground within 10 feet of me is difficult terrain. It was no armament. It was, I meant it tremendous harm. Are you talking to that cat? Oh, yes. Sorry.