Ear crop in Presa Canario

Here are few book scans with directions how to crop ears and diagram for those who can’t read spanish

 

To the colour photos:

Typical Presa Canario ear cropp. Description from book says:

Upper: ears are cut in shape of triangle, as it is traditional with perros de presa canarios. You can notice the corners.
Lower: ears of adult perro de presa canario. As this photography shows it is desired to keep them as erected as possible.