If disaster should befall the larger chick the parent can switch to feeding the youngest and it will exhibit a constant growth curve from the day of active feeding. From Wikipedia
Simply send them a letter (with proof of delivery) using the contact information found on your credit report. Generally they have 30 days to investigate and get back to you, or the information must be removed.
Your charged-off accounts will stay on your credit reports for seven years and then must be removed under the Fair Credit Reporting Act. So, if you choose not to pay, you will have to wait that long for the charge-offs to no longer affect you. My advice is to work out a payment plan to pay what you owe in as little time as possible.