How long does it take for a baby squirrel to open its eyes?

How long does it take a baby parakeet to open it eyes after it has been born.?

• One was born on thanksgiving day and the other was born 11/24/2007. So it is a few hours old. But I have never been able to tell when they open there eyes.

• Answer:

  "The eyes open on the sixth or seventh day. On the seventh day the primary feathers begin to appear, and on the ninth day the tail feathers. The down covering is complete after ten to eleven days. By the time the birds are five to six weeks old--the point when they are ready to leave the nest box--the large wing feathers have grown three fourths of their full length and the tail feathers two thirds. The young birds are already good fliers. In another seven to ten days the flight feathers are as long as they are going to be." http://www3.sympatico.ca/davehansen/develop.html