I was sent this by a friend today....
"The sound of a rooster crowing can reach 142 decibels (when measured at the rooster’s head). To put that in context, a chainsaw produces about 120 db and a jet taking off 25 metres away is about 150 db and can lead to eardrum rupture. Scientists in Belgium questioned how could a rooster crow so loudly and not damage its own hearing.
They discovered that when a rooster opens his mouth fully to crow, the auditory canal (the pathway from the outer to inner ear) is shut off. This means that while a rooster is crowing, he can’t hear anything. In contrast when a hen opens her beak completely, there is only a slight closure of her auditory canal. What scientists haven’t explained is how nearby hens can tolerate the loud noise."
Not sure if it is true or not but it would explain why cockerels have no care about crowing all day!!!!
"The sound of a rooster crowing can reach 142 decibels (when measured at the rooster’s head). To put that in context, a chainsaw produces about 120 db and a jet taking off 25 metres away is about 150 db and can lead to eardrum rupture. Scientists in Belgium questioned how could a rooster crow so loudly and not damage its own hearing.
They discovered that when a rooster opens his mouth fully to crow, the auditory canal (the pathway from the outer to inner ear) is shut off. This means that while a rooster is crowing, he can’t hear anything. In contrast when a hen opens her beak completely, there is only a slight closure of her auditory canal. What scientists haven’t explained is how nearby hens can tolerate the loud noise."
Not sure if it is true or not but it would explain why cockerels have no care about crowing all day!!!!