Thank you for sharing this - it shows how much can be created just by our strong faith and our perseverance and devotion to the dharma. While the bird story is very impressive and inspiring, to me it is actually not about the bird at all, but about how such beings would never give up in the face of such adversity. The atrocities that such monks would have had to face in their homeland, before leaving, is incredible - I am sure many of us have heard what Tibetan monks and nuns were subjected to when the Chinese took over - the bombings of their monasteries, watching their lamas and friends being killed, the torture... I think we can only imagine a fraction what it would have been like. And yet, they don't give up. They are still monks today, 60 years on. And they are happy.
How many of us, in the comforts of our modern worlds, are ready to give up at the drop of a hat? If one little thing doesn't go out way, we become angry, discourage, depressed and despondent. We think, "there's no way out" and we want to leave. Imagine if all those monks who crossed the Himalayas had reacted as we do - we would not even be here on a forum talking about Dharma!