Agreed, telling the age is extremely difficult, but it sounds like your bird maybe older than you were told from what you have said.
Thanks, Ryan http://www.parrotcagesforsale.co.uk/
Sep 29, 2011
Ring around their necks by: Joan Quinn
Indian Ringnecks develop a colorful ring around their necks when they are adults. So if yours does not have this ring yet, then I would assume the seller was correct with his age.
Sep 29, 2011
Determining bird's age by: Tracie
There is not a way to tell the age, but if it has a ring, it is not 4 months old. ;-)