On the subject of "proven pairs...." "Proven" is something you want to have every breeder define to some extent. I have known some breeders call a pair proven, only to find out later that they lay eggs, hatch them and then eat the babies.

 

Pairs also often change their behaviors when they change locations. I had 2 pairs that ate their babies and I told the interested breeders about this trait before I sold the pairs. The one pair, Red Bellies, went to man named Ken who just had the pair successfully raise a baby. The other pair, Blue Headed Pionus, went to a man who incubates all of his eggs, so this problem was eliminated.

 

A fellow breeder here bought a very proven pair of Greys, paid top dollar, bought the cage and nest box, bought the pairs that were on either side of their cages and set them up exactly the same at her home. This pair of Greys have not had another baby and they have been with her for 3 years.

 

In other words, buying proven or unproven, does not guarantee a situation with birds. These are still creatures that have lots of unpredictabilities around them.

Also be careful about what a breeder means when they say "proven" Ask lots of questions!