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.
The credit card that is in collections is a closed account. Paying it off will not take that bad item off your credit report and it will have little to no effect on your poor score. Accounts that are charged off will stay on the credit report for 7 1/2 years after first delinquency. Paid off nor not.