Originally posted by KBlaix
The problem with that is that they can become egg bound (wether the egg is fertile or not) , which often results in death.
That is true and something I forgot to mention, however the risk of this can be diminished drastically if the bird is receiving a proper and well balanced diet (not pure seed diet) with plenty of fresh foods like fruits and veggies as well as always keeping a cuttlebone and/or mineral block for calcium supplementation. I lost a bird to this before I was really educated about the risks and the preventative methods . Here is a very informative and detailed site that has to do with egg binding, with links at the bottom on preventative measures. http://www.cockatielcottage.net/binding.html