are they stilll feeding the squabs? if they are still feeding them they will develop but i reckon much slower than they should. i'm not quite sure about the dark skin part.
i'm going to tell you about my birds. i got them at 4 weeks and i let them out while they still couldn't fly. while looking and watching after them or get my neices and nephews to do it when i'm at work. once they started flying from here to there i kept them in and would only let them out...
beautiful people i was hoping we could form sort of a group where we would share stories and info about our lovely birds. so that we all keep in touch and perhaps attract other fanciers to join in with us. and Kyla i'm sorry about the loss of the squab. but that was a lesson learnt. you will...
how old are your birds? make 5 nest boxes. each cock bird should have his own box. once they have made claim of the boxes it will be home to them. should be spacious boxes those and must have doors to lock the birds in. it's best to have a mash wire in the front of each box to easily...
the only option is to hand raise them. though it won't be an easy process but it's better than leaving them to die. google methods used in hand raising doves. Good luck!