Missed you again birdlover, got there about 1:20 pm, like you I could only see three. One was on the nest ledge,one was on the perch and one was on the roof.so I thought oh oh where's the fourth!! But just as I was looking at the nest in comes mom or dad( I'm not smart enough to tell them apart unless thy are together) with some food.Then I could see the fourth one it had been lying down in the nest it grabbed the food and started to pig out, the other three weren't interested and stayed where they were. Then the one on the nest edge began to wingersize in earnest with some major flapping, jumping and/or flapping from the ledge to the roof of the nest box and down again several times. Mom and dad were on the lights at the top of the tower,one on the east and one one the south sides. Then the chicks settled down looked like it was sleep time,except for the one in the box it was still eating.
birdlover is right, one of the chicks looks like burnished gold in the sunlight even seeing her(? )thru the binocs and from the distance from parkade to nest box. left about 2:15 getting too hot and windy for the old girl,Also tired from making all those Sakatoon pies.
