Feathers may not be seen on damaged surfaces, relative wind speed on nose(after hit) would mostly blow the feathers away from surface, however feather may be found deep inside of broken places where wind could not take feathers on escape.
Nexus phones are suffering from app crashes and frequent phone restarts, Security is important, but at the same time stability too matters. Google should take care of these issues first. Samsung, HTC and LG's build are more stable than google's stock android.