(Bycanistes brevis)
The guanoeargentate hornbill ( Bycanistes brevis Friedmann,1929 ) is a medium-sized bird of the Bucerotidae family,widespread in East Africa.Like all bucerotidae,it has a showy beak,with the typical "horn of an ox" shape,surmounted by a sort of "helmet",a hollow structure that acts as a sounding board for recalls.