i have a male and female cockatiels, they have babies for about 2 weeks now. the babies have been inside the nestbox ever since and i occasionally let them out and handle them (without their mom and dad knowing anything). the problem is, the babies have been pooping inside the nest box and their poop is accumulating inside so the nestbox really has a stinky smell and i want to change the pine shaving for hygiene of both the babies and my home. is that ok or would the parents abandon the kids if they noticed that the pine shavings have been changed? i don’t want that to happen because i don’t want to hand-feed the little birds. thank u