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
Depends, a repo stays on credit for 7 years, and a bankruptcy stays for 11 years, after you have paid off a debt and they have received payment it should be taken of immediately, but you may want to get a free credit report and check and if it is still there call them and ask them about it.
Potential creditors, and anyone else who looks at your credit report, can see the debt and the fact that it was never paid. It takes seven years (five years for New York state residents) from on the original delinquency date on the account before the debt drops off your report.