Sparrow Tenants Second Brood of Chicks

Our Sparrow Tenants have been "broody" for the last week or so.
I decided to take a peek this morning.
Indeed, I definitely saw three wide open mouths on very young chicks. 
These chicks are considerably easier to photograph directly as their nest is built on the substantial foundation of the first nest of this season.
Yuki has noticed the comings and goings too.