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.
but as you make on time payments the impact of these negative marks will fade a late payment drops off your credit report entirely after seven years if you re more than 30 days behind the best thing you can do is to make at least the minimum payment as soon as possible