Female usually have a smaller bone structure and will be smaller as a general rule. A good breeder knows at a certain point how big their puppies will be. To a point. For example, Beckie’s breeder said she would be around 6-8 lbs, and she is 8 lbs.Thanks Dechi!
Along those lines... is it somewhat reliable that a female puppies are smaller than male puppies in the same litter?