I've been reading the local guidebook, and it appears that some of our group may be unable to climb in the area.
The following is taken from the Espuna Declaration on Sustainable Climbing (in a transalation presumably done by Google or Babelfish):
"It is necessary to avoid the human presence noises (screams and high voices) being conscious that we are in the habitat of many living beings which can be sensitive to this environmental alterations. The communication among climbers will be deliberate and quiet, avoiding deafening sounds and voices that can alter the quietness in the area and can take to the animals' displacement and extenuation."