I have a tortoise enclosure (open top, large) with fishing line criss crossed over the open area. Small birds fly in and out (fine), but not hawks or crows. The fishing line interferes because they just have bigger wing spans, so can't glide in and out easily.
Birds can see much more detail than humans, so the line is very obvious to them.
I believe that it will help, depending on how close the lines are. And it certainly sounds worth it!
I saw another post about using fishing line, I'll try to find it.
OK, here it is. Scroll down especially to post #15
https://www.backyardchickens.com/t/...en-to-repel-hawks-question-answered-thanks/10
and this
https://www.backyardchickens.com/t/124228/using-30lbs-fishing-line-on-top-of-run/10
especially post #15
Birds can see much more detail than humans, so the line is very obvious to them.
I believe that it will help, depending on how close the lines are. And it certainly sounds worth it!
I saw another post about using fishing line, I'll try to find it.
OK, here it is. Scroll down especially to post #15
https://www.backyardchickens.com/t/...en-to-repel-hawks-question-answered-thanks/10
and this
https://www.backyardchickens.com/t/124228/using-30lbs-fishing-line-on-top-of-run/10
especially post #15
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