Increasing its pH because then the enzyme wont be ablr to work properly
I'd say zoology.
Zoology is the study of animals, generally speaking, and since birds are animals, the study of these fall into the field zoology. The study of birds though, is called ornithology.
Hope it helped,
BioTeacher101
Well yes, but a dichotomous key can be used to classify just about anything you want.
Hope that helped