- Anonymous7 years agoFavorite Answer
Not a lot of information to go on.If it is just one egg and it has been cold for 24 hrs.then throw it away.Source(s): Cockatiel Breeder over 48 years.
- 7 years ago
Black dots? Well if so that is not a good sign. I'm not an expert on this black egg thing. Because my birds egg are white and never black. A normal cockatiel egg is white and warm. But if yours is kinda black and cold it MIGHT be rotten. Wait a few days and see, if its stay the same = rotten.