I did not read this information, I found it on youtube from several different videos a few months ago when I was having raptor problems. Poultry netting also works the same as strings, it confuses and slows down attacking raptors.
https://countrysidenetwork.com/dail...s-housing/how-to-protect-chickens-from-hawks/ here is a link that talks about using fake owls, scarecrows, roosters, and more to protect your chickens from raptors. Crows mob owls and hawks during the day because owls hunt crows at night, you can also find videos of this online. The crow is much more agile than a hawk or owl and when there is 20 or so crows and one owl or hawk it can get really hectic, the crows will pull on feathers and just annoy the birds. Most raptors will avoid crows completely, red tailed hawks are terrified of crows and will never attack them. Crows may not have sharp ripping beaks or big talons but they can still injure an attacking raptor. Videos of raptors getting mobbed by crows can be found all over youtube. Some raptors do not fear crows, such as harris hawks, who will boldly fly into a mob of crows and kill one. The crows will also really bully smaller raptors suck as sharp shinned hawks and cooper's hawks, there is some videos online of small raptor nests being raided by crows. This of course changes at night when crows have to roost, large owls like the Great Horned will murder them in there sleep, Great Horned owls will also kill hawks in there sleep and are just a very feared predator by pretty much everything besides coyotes, fox, and large raccoons. They will even kill skunks and opossums, and Great horned owls are also a common occurrence at eagle nests, if you watch eagle live cams, almost every night Great horned owls will pester the much larger eagles, they will also kill young eagles if a parent is not on the nest at night. Of course this all changes during the day when the GHO just wants some sleep, he will not bother with large mobs of crows because they are way to alert and agile to catch in the day. I am not sure why the crows hate hawks so much though, also the owl decoys are used for scaring hawks away. Also GHO really hide at day in areas with bald eagles, bald eagles have been recorded killing large GHOs on the nest. All those big predatory birds are definitely not friends with each other. But if you do have a large flock of crows be careful, they have been known to kill young chicks. But crows eliminate the top three chicken hawks in the USA from your area and keep the owls away during the day.
