I saw in another thread where folks have referred to them as poisonous. We have nine trees where the birds range. I've never fed them any, but I have witnessed them destroy a fallen one. Are they really known to be poisonous or is it a matter of opinion? Like they also commonly say the same for dogs, but I know plenty of fat farm dogs that eat little else- heck there's even a dog food company that puts it in feed.. What do you all think?