About the 4th egg: I don't think it's going to hatch. There has been no egg talk or no rolling what so ever..
16.53 A blissful afternoon. Chicks are not covered by their parents at all, they would probably overheat.
17.23 Chicks were chirping but as Kergu regurgitates food, they are in no hurry to eat. They must still be enough full from the last feeding time. They nibble a few bites, but overall they were not intereseted in food this time. A minute later, Kergu eats it back.
17.31 Kergu tries again. FEEDING(8) Now they eat

but sloooowly.
18.11 So sweetly cuddled together
But not for long, because chicks are already back at the table.
18.13 FEEDING(9) Only a tiny piece of food. No3 eats the most.
Kergu covers the chicks. Notice that the 4th egg is not covered at all.
