Window mesh look good.
Nests I find a bit confusing.
I see a kind of a perch/platform, that may or may not be navigable,
and a tote that I think has a cut out for an 'entrance'.
But why all the other bedding outside of the tote?
That very top space might turn in to a roost(place to sleep).
I would have put a 2x2 perch 8" away from front of nests.
Used 4 totes with 'entrances' cut in front, with a piece of wood(1x2) across front of shelf even with bottom of tote entrance for footing and to keep tote on shelf.
Block off top shelf to keep birds out, maybe hinged door for supplies in there.
Nests I find a bit confusing.
I see a kind of a perch/platform, that may or may not be navigable,
and a tote that I think has a cut out for an 'entrance'.
But why all the other bedding outside of the tote?
That very top space might turn in to a roost(place to sleep).
I would have put a 2x2 perch 8" away from front of nests.
Used 4 totes with 'entrances' cut in front, with a piece of wood(1x2) across front of shelf even with bottom of tote entrance for footing and to keep tote on shelf.
Block off top shelf to keep birds out, maybe hinged door for supplies in there.