About 4 miles up from the trailhead on Seg. 5 in Lost Creek Wilderness, there is a very angry bird, probably a grosshalk. Warned me then swooped within inches of my head about half a dozen times. I shouted her off, like a mad mountain woman, waving my water bottle. I returned in reverse direction and decided to calmly walk through, and ignore. However, Grosshal swept by and snatched my white cap off my head and flew off to never never land. Moral: hold onto your hats, boys and girls
terbear