An ornithologist is a scientist that studies the branch of zoology that concerns birds. If he specialized in ducks he would be said to specialize in Anatidae (the family of birds which includes ducks)
duck hunter
i think the ducks went to a scientist house and the scientist ask the duck '' do you wanna help me do a experiment with me or for me?
Ludwig Von Drake .
A geographer.
Paul
environmentalist
geologist
archeologist
audiologist
a botanist, botany is the study of plants
A neuroscientist or neurobiologist is a scientist who studies the brain.
zooligest,vet
they are known as geneticists.