Will green indian ringnecks breed with yellow african ringnecks and at what age are they done with breeding if any.

I don't know the answer to your question, but perhaps you can find out a little more here.Asiatic & African Parakeets / Ringnecks- Psittacula / Long-tailed Parakeets: Information and Photos (http://www.avianweb.com/ringneckparrots.htm)