They all went away for the holiday weekend, I'm assuming that's the reason why she has not milk after only a week of giving birth

, he is doing fine with the bottle, not my first choice, but after 3 days without seeing him I can tell he is stronger and bigger, I need to go get food for my birds and will get that scale for him.His eyes are still close and I'm feeding him every 1 1/2 -2 hrs.I don't want to over feed him, for how long do I keep this schedule?