Golden and bald eagles can definitely carry animals more than 5 pounds, here is a news report of a bald eagle that dropped a deer fawn onto a powerline and shut off the power. A day old fawn is on average over 5 pounds, sometimes up to 8.
Also, if you have ever watched a nest cam of bald eagles you will see them bring in large opossums quite often, a big opossum can weigh 12 pounds and a small adult is usually around 8, they also bring in cats sometimes, waterfowl, and then turtles. A bald eagle can definitely lift more than 5 pounds.
I found a video of a Golden eagle carrying a plump little goat back to her nest, this one is not very fair though because she did not have to take off with the goat from the ground, he took off from a clif.
A lot of this video is just showing the eagle pulling them from the cliff and then letting them drop to their death but at 5:04 the eagle pulls it off the cliff, holds onto it, and then ascends down with it and flies back towards the nest then goes upwards and lands. I am not sure how much that goat weighed but it is definitely more than 5 pounds. Of course this would not be possible if he was taking off from the ground but still he flew away with it.
Also, to the person who said raptors always eat their kill where they killed it, that is bs, parent raptors will always bring the kill back to their kids, even if it is to big to carry it will be dismembered and taken away in pieces. Also, lots of bird hunting raptors, such as the sharp shinned hawk, prefer to eat off the ground and will carry any bird they catch up into the trees to eat if it is small enough to be carried. Point is this was not a raptor. I doubt it was a dog either, no dog is going to kill a chicken by carefully nibbling on its neck, unless you have some sort of dwarf chiwawa. That hole is so small it honestly would be hard for a chiwawa to make such a precise kill, even a cat is pushing it, it was either a small cat or a weasel, not a raptor and not a dog.