Day 6 / 2 winners so far!

We have 2 folks with the right answer to the mystery about what kind of birds these are! I will give the weekend for somebody else to come up with it also (shouldn't be too hard by deduction :-) On Monday I will post the answer and send out the bookmarks to 3 winners! They are growing at an alarming rate! They leave their nest by day 16, so need to get those feathers quickly to stay afloat! 10 more days and they will have flown the coop.......