Pineapple conure not breeding

[Hamza.27]

I have 2 pais of pineapple conure for more than 2 years ihave been providing them with good food calcuims fruits etc for the first year i kept them in different cages and placed next boxes they usually slept in it even crosses but they dont breed then i put then in one big cage both pairs and placed nest boxes but still no breed more over now all four off them sleeps in same nest box they are over 2.5 years of age what should i do to get thier breed?? Please help i have their dna tested and males and females are conformed

 

[rheashard2]

Welcome. Hopefully members familiar with your species can help.