Yesterday, I took the opportunity while the female was away from the nest area to check on the status of the eggs. As always, I made extra sure that I was in no way disturbing the nest. I was able to confirm by snapping a very quick photo that the eggs had indeed hatched! Judging by the chicks' appearance and lack of downy feathers, I'm estimating that they are only a day or two old.
When the female returned, she again brought food in and this time around I was able to see the chicks poke their heads out of the nest, their mouths open in wide gapes. Although it would be brilliant if all three chicks fledged successfully, I learned recently that the success rate is only around 30-40%. Chances are this female will lay one or two more broods at this site, so I may get to witness the cycle more than once.