Bozeman and Vicinity Professional Review and Guide
"The rivers, forests, foothills, mountains, and rolling grasslands around Bozeman offer an array of birdwatching opportunities. General Information: The city of Bozeman is named after John Bozeman, the famous trail blazer and pioneer guide who in the 1860s established a wagon trail from Wyoming to the Gallatin Valley. Lewis and Clark visited the present-day Three Forks area on July 27, 1805. At the current site of the Missouri Headwaters State Park, they were unable to determine which of these three forks was the main stem of the Missouri River.
Consequently, they named the river to the west for President Thomas Jefferson, the river to the south for Secretary of State James Madison, and the river to the east for Secretary of Treasury Albert Gallatin. This eTrail provides detailed information on birding strategies for this specific location, the specialty birds and other key birds you might see, directions to each birding spot, and helpful general information."