"The amazing views of the naturally dominate and absorb the attention of the hurried visitor to the canyon rims, but between views the bird-minded may hear arresting songs and cath glimpses of feathered passers-by that will add intimate pleasures to the memories of the "great abyss." After a night in the familiar song of the may be heard on awakening, followed by the happy song of the rosy well associated with the sunshine of the Southwest. Then perhaps will come the coarse croak of the , adding a grateful bass note to the ."