I was there. The most amazing thing by far was watching each one of them tentatively step out of their crates and touch the grass for the first time.
Most of them recoiled.
And the sunshine. They kept looking up at the sun in the sky, having never seen it before. It was truly amazing. It is also truly heartbreaking what they go through.
There's a great video here And another one here. It was truly one of the most amazing and at the same time gutwrenching experiences of my life.