The sparrow near the altar

Psalm 84:3-4 - Even the sparrow has found a home,
and the swallow a nest for herself,
where she may have her young—
a place near your altar,
O LORD Almighty, my King and my God.

Blessed are those who dwell in your house;
they are ever praising you.

I wonder if anyone tried to keep birds (and other critters) out of the tabernacle or the temple. Was there ever a debate amongst the priests and Levites about it? You'd think birds could make quite a mess in there. Then again, no more mess than all the sacrifices that were done deliberately.

This psalmist comes up with a good reason for leaving the sparrow alone. Even the small bird was happy there and was praising God (in song).