2D friction not slowing down velocity

Hi,

I am currently completing an AB clone tutorial where I am stuck on the bird not stopping or slowing when it hits the ground (velocity in the x direction does not change). I have been through the code and everything seems to be OK (no forces acting on the object), I have added a physics material to the bird on both the rigid body and collider however nothing seems to slow this bird down.

Can anyone assist in anything that I may have missed?

Thanks,
Jared