So how do eagles target
and safely catch terrestrial prey?
To find out, Lloyd has come to Scotland
to put his golden eagle Tilly to the test.
But first,
he needs something for her to hunt.
This is Robo-hare,
designed and created by tech wizard Chris Watts.
With a fake fur coat and high-speed motors,
it can blend into the undergrowth or flash across the open.
It's also fitted with an onboard 360 camera
to capture all of the action.
OK, she's going to rouse.
Get ready.
OK. Go, go, go, go! Fast, fast!
[Narrator] In a matter of seconds, Tilly locks onto her target.
[Lloyd] Oh, she's got him.
She's done it. Thank you very much, Tilly.
Good girl.
[Narrator] To challenge Tilly's hunting ability,
they repeat the test in different conditions...
[Lloyd] Go!
[Narrator]..from strong winds and overcast skies
to bright sunlight.
But the outcome is the same.
To reveal the secret to her success,
we need to go through the footage frame by frame.
First, Tilly keeps a constant
lock on Robo-hare's position.
Next, she uses her wings to adjust her trajectory
as the wind changes or the target moves.
She keeps her legs tucked in to stay aerodynamic.
Then, just a quarter of a second before impact,
she swings her feet forwards
so both eyes can see Robo-hare
and her talons.
She makes perfect contact.
But in a demonstration of sheer power...
OK, get ready, Chris.
..Tilly's hunting skill is about to reach
the next level.
Robo-hare weighs 5.8 kilos –
one and a half times more than Tilly.
But not only can she catch Robo-hare,
she can lift it high into the air.
She even has the strength to carry it
with one foot.
A remarkable achievement for a load
weighing 150% of her own body weight.
[Lloyd] Yes! Whoo-hoo-hoo-hoo!
What a girl!
Good bird!
There's a good eagle.
[Narrator] She's able to do this because, like all eagles,
she's armed with highly specialised weapons:
talons.