The bird that can pick up a human or a small human at least such as a toddler is the harpy eagle.
The harpy eagle can pick up a small human such as a toddler weighing at most 20 lbs.
The biggest animal that an eagle can carry is an animal weighing at most 8 lbs and if it did lift that 8 lb animal up it cannot carry that animal far without dropping it as around 4 lbs is the most an eagle can carry for too long of a distance.
Eagles can only carry up to about 4 lbs.
Anything over 4 lbs is considered too heavy for an eagle to carry.
The average eagle can pick up and carry in flight a weight of between 3 to 4 lbs which is not all that much.
So while an eagle might be able to lift a small dog such as a Chihuahua or a cat the eagle would not be able to lift and carry in flight a larger dog or other larger animal.
Eagles can only carry a small percentage of their weight so an eagle would not be able to lift up or carry a goat or anything else that is large and heavier than it is.
Eagles do however feed on dead goats, dead sheep and other dead livestock but they do not kill the livestock nor can the eagle carry them away.
An Eagle could likely carry a chicken away and kill them but no large animals.
If you kill a bald eagle and it's not a justifiable killing of the bald eagle it can get you into some serious trouble.
If it's your first offense at killing a bald eagle you'll usually get a fine of $5,000.00 and possibly 1 or 2 years in prison.
Then if you get caught a second time killing another bald eagle then the fine goes up to $10,000.00 and another 2 years in prison and for the third conviction of killing a bald eagle you can get an even higher cost fine.
The fine for the third offense of killing a bald eagle is around $250,000.00 and possibly another 2 years of imprisonment.
So never kill a bald eagle unless it's justifiable as in harming you or someone which they rarely do.