I'm not sure if I read that right. Someone here is trying to grow milkweed? If I'm not being stupid then that's hemlock and my question isn't anything to do with it's poisonous nature as opposed to why would you want to grow a weed? I mean sure low effort, but not properly used with companion plants it's just gonna take over and to be honest even with companion plants I dunno what you could possibly do with a plant like that.
If it's your plant, then hey go for it, but IMO it's ugly and at best accents a garden and in that situation, jeez so much work to make it do only that.
My mother told me to add a generous measure of chicken droppings when I first started and the every year thereafter. The soil might just be suitable as well. I have no idea what the real reason was.
There were (are?) a couple hawks/raptors in my area. I think they kept the birds largely in check.
Initially the rabbits were so lazy/acclimated they did not even react when I banged on the glass door to try and scare them. That is when I knew that violence was the only option if I wanted my goldenberries.
I wear a 3M mask and plastic gloves when I cleaned them. I also observed them before I shot them with my crossbow. If they were acting sickly or strange and their bodies had irregularities then I would just dump the corpse at the edge of the woods nearby instead of skinning and cleaning it. Fortunately, all the ones I got were healthy and some were quite fat.
My grandmother was visiting us one summer and she has a taste for rabbit that she acquired during the Great Leap Forward/Cultural Revolution. Rabbit is almost impossible to acquire in chicom land, so she was especially pleased that Canada was hopping with them.
As for the first three comments.
Chicken shit is great for a compost, but it runs really hot so you gotta let it sit for awhile (about 3-6 months) you want the compost gets to a dark soil look and texture. It is really important to not throw it in too soon as the N balance can be really high, but overall a great compost mixture for supersoils.
As for birds generally scaring them off works to a degree. Birds learn faster than you would think, though it may take some drastic measures (try to avoid making corpses in your garden though.)
as for foxes and the like, it's unfortunate, but you kinda just gotta kill them. They're a temporary problem if you do and a long term one that gets worse if you don't. Sorry to say it's just how it goes, if it's someone's pet try to make the effort to fix the situation through diplomacy first though... Unless you like your neighbors hating you that is.
The rest kinda sounds like psychobabble to me so no comment.