The Hawk is Dying (2006)

Paul Giamatti plays a single, middle aged man who cares for his abandoned sister and her autistic son. His character obsesses with taming a wild hawk by starving himself until the hawk eats from his hand.

The film is categorically independent in style and has a ethereal, morbid feel to it, but this only adds to the urgency and poignancy of the plot. He feels his manhood and his recovery from grief are tied to this act of taming to such an extent that it seems like a latent rite of passage.

IMDB