The first egg has hatched!!
You can see that the shell looks like it's starting to crack in this picture.
These were taken last night, so I'll go out in a few and check again. I'll bet I find two babies when I check again. I have high hopes for these babies surviving ok. They're in a locked shed with relatively small openings ( we were surprised this bird was able to get into the shed in the first place), so they're safe from the vast majority of predators out there.