Been there, done that. Worked crazy shifts for years. I now follow a schedule determined by my children. Up at 6am, to bed by about 8-9pm. Weekends, holidays & summer vacation shift a couple hours later since we don't have to be up as early. Only conflict with the critters is that I lock mine up at night so they really do need to be let out at a reasonable hour.
As for mowing, coop construction, etc., as long as it's not bothering any neighbors I see no problem with it. What annoys me is the ones banging around at 6am right outside my window or blaring their stereo at midnight when my kids have to get up for school.
