David Douglas was an early naturalist who collected specimens
(mostly plants) in the Northwest (or Southwest if you are Canadian).
He is the Douglas of Douglas-fir, Douglas' squirrel, etc.

>From his journals, evidently in the South Cascade Mountains north
of the Columbia River, in 1825:

"On Saturday morning went on a journey to the summit near the Rapids
on the north side of the river, with the chief's brother as my guide,
leaving the Canadian to take care of the tent and property. This took
3 days and was one of the most laborious undertakings I ever experienced,
the way was so rough, over dead wood, detached rocks, rivulets, &c. that
very little paper could be carried. ..... The second day I cought no fish
and, at such a great altitude the only birds to be seen were hawks,
eagles, vultures, &c. I was fortunate enough to kill one young
white-headed eagle, which (then) I found good eating. I roasted it,
having only a small pan for making tea."

David Douglas, August 19, 1825,
from Douglas of the Forests, by John Davies, University of Washington
Press, Seattle. Page 48.

Ah, how biology has changed.
Kelly Cassidy