In the case of a vent install a mesh wire screen.
Continuing popping noises in the attic.
As for the popping noise in the morning and evening that s a different mechanism.
The sun hits your roof and heats it up.
As the lumber expands it moves.
It s thermal expansion and contraction.
One problem that could be causing a popping sound in your walls or in the attic is pests.
Also when the temperature becomes very hot or very cold or when sunlight warms one part of a home and not another these noises may become more pronounced.
The air will still be able to exit your home but birds and other pests.
At night attic can sometime make loud creaking and cracking sounds.
A california friend of mine has such a creaking overhead and it bugs him no end.
Getting rid of these attic dwelling pests.
Undoubtedly the noises come from the expansion or contraction of the roofing or ceiling framing members.
A loud popping noise in the attic is often very common especially when there are extreme temperature differences such as large and rapid fluctuations between night and day temperatures.
The creaking sound is perfectly normal and is caused by the movement of roof timbers responding to changes in temperature.
It can ofter sound as if the roof is broken in some way or the roof is going to collapse.
Avoid leaving pet food outside.