Crow feathers are sought for the arrow shaft and for use in ceremony. The buzzard is not molested, and both are sacred. Pg. 159

An Ethnologic Dictionary of the Navajo Langauge, 1929; The Franciscan Fathers

Crow (ga'gi) (U) as a carrion eater, classed with birds of evil propensities, is difficult to persuade. He is important in the myths of the Night Chant and War Ceremony, a 'crow-bill' being a major property of the latter.
Crow gossips if he sees someone covered up early in the morning, spreading the news that the lazy person must be sick.
Before the world was transformed, Red Crow was a messenger of Cliff Monster, reporting to him the existence of human beings (Matthews 1897, p.107; 1902, p.159; Haile 1938b, pp. 93, 193; Hill 1938, p. 19; Reichard, Shooting Chant ms.).

Navajo Religion, Vol II; Gladys A. Reichard, 1950