Update: The basal conure that I got last May breed, they have 2 eggs currently and hoping that they will hatch. The eclectus are not showing any sign of breeding yet although they are both 3 years old. The ringneck pair, well, the female chewed up the NB, will be installing a new one soon with aluminum outer part. The tiels are enjoying their flight cage.
Not sure why they drop one egg out of the nest, most likely due to stress but I am happy to see one chick is healthy. Hopefully they would soon breed again.