Pliny the Elder was a respected naturalist, though he built on a multitude of additional sources.
biologist
He was a California naturalist by the name of John Muir
A Naturalist
Naturalist
"Naturalist" is a noun.
The opposite of a naturalist would be a creationist.
Death of a Naturalist was created in 1966.
The American Naturalist was created in 1867.
John Reeves - naturalist - was born in 1774.
Charles Darwin was a naturalist who wrote about his discoveries on the Galápagos Islands.
Charles Darwin was a famous English naturalist, who proposed the theory of evolution.
I can't answer that directly: However, I can say that the given spelling is a perfectly accurate version, as it is (exactly) the correct spelling of at least one living person. Birkenhauer is a not uncommon Germanic name with roots: "Birken" (Birch) and "hauer" (cut, same root as "hew", to chop wood). The name is historically a cabinet makers guild name. There are many slight variations that are close, I am not familiar with a British naturalist of that name.