Thanks the keen eye of Marlene (thank you!), our first hatch was noticed early this afternoon! Based on this fact, first flight may be approximately July 1st when young are at an age of around 33+ days.
I've also attached a photo of a female American Kestrel I saw at the Bird Festival at Colonal Samuel Smith Park on the weekend.
More updates on the falcons will follow in the coming weeks.
I'd also like to take a moment to mention for any whose path may have crossed Frank Butson (aka "BigFrank"). Sadly, the birding community has lost a very valuable member. I had the good fortune of going birding with Frank a number of times, and each outing was amazing. Frank also worked countless hours over the years at the Bloor/Islington nest doing fledge watch, volunteered with the Canadian Peregrine Foundation, and also helped me interpret the behaviours of our birds here over the years. Frank will be missed and left us at far too young an age, but let's hope he's now soaring with the birds he loved so much. More info here.