Editing Common ostrich (section)

=====Nasal glands=====
A number of avian species use [[Salt gland|nasal salt glands]], alongside their kidneys, to control [[Tonicity|hypertonicity]] in their [[blood plasma]].<ref name=saltglands>{{cite journal|title=Saline-Infusion-Induced Increase in Plasma osmolality Do Not Stimulate Nasal Gland Secretion in the Ostrich (''Struthio camelus'') |journal=Physiological Zoology|jstor=30163924|year=1995|volume=68|issue=1|pages=164–175|last1=Gray|first1=David A.|last2=Brown|first2=Christopher R.|doi=10.1086/physzool.68.1.30163924|s2cid=85890608}}</ref> However, the common ostrich shows no nasal glandular function in regard to this homeostatic process.<ref name=saltglands /> Even in a state of dehydration, which increases the [[Osmotic concentration|osmolality]] of the blood, nasal salt glands show no sizeable contribution of salt elimination.<ref name=saltglands /> Also, the overall mass of the glands was less than that of the duck's nasal gland.<ref name=saltglands /> The common ostrich, having a heavier body weight, should have larger, heavier nasal glands to more effectively excrete salt from a larger volume of blood, but this is not the case. These unequal proportions contribute to the assumption that the common ostrich's nasal glands do not play any role in salt excretion.