Changes

====Salt glands====

====Salt glands====

These glands are found in desert and aquatic birds as salt consumption exceeds renal clearance.  These supraorbital glands drain into the nostrils and account for 20% of total NaCl excretion.  They are not under the control of kidneys and the hypertrophy if the birds salt intake increases

These glands are found in desert and aquatic birds as salt consumption exceeds renal clearance.  These supraorbital glands drain into the nostrils and account for 20% of total NaCl excretion.  They are not under the control of kidneys and they hypertrophy if the birds salt intake increases.

====Other Roles of the Avian Kidney====

====Other Roles of the Avian Kidney====