Bird

Bald Eagle

Haliaeetus leucocephalus
Bird Along the Missouri River near present-day Council Bluffs, Iowa New to Western Science
Bald Eagle

Photo: Wikimedia Commons, CC BY-SA

Common Names
American Eagle, White-headed Eagle
Habitat
Near rivers, lakes, and coastal areas throughout the expedition route
First Observed
1804-08-12
Observed At
Along the Missouri River near present-day Council Bluffs, Iowa

Bald eagles were frequently observed along the rivers throughout the journey. Lewis distinguished between the bald eagle and the “Callamet Eagle” (golden eagle), noting their fishing habits and nesting along the Missouri and Columbia Rivers. The expedition members regarded the eagle as a majestic symbol of the wilderness they were traversing.

Recent sightings

Where it’s being seen today

62 research-grade iNaturalist observations between 2010–2026. Most recent: 2026-03-25. Sourced from Terrain360 trail captures, cached locally.

Journal References

15 journal entries mention Bald Eagle

Oct 10 1804
Clark: October 10, 1804
...ighting ravin 2d Chief Po-casse (Hay) & the 3rd Piaheto or Eagles Featherafter the Council was over we Shot the Air gun, which astonished them, & they all left us,...
Oct 14 1804
Missouri River approaching Cannonball River — John Ordway: October 14, 1804
...ce. 8 "this creek we call after the third chief Pisheto (or Eagles feather)." Clark. Laid down as Eagle Feather Creek
Apr 10 1805
Departure from Fort Mandan, Missouri River — John Ordway: April 10, 1805
...2 oClock we halted [and] took dinner, one of our men Shot a bald Eagle. I took the quills to write, proceeded on Cap1 Clark killed a prarie hen & joined us. Saw two large...
Apr 12 1805
Departure from Fort Mandan, Missouri River — John Ordway: April 12, 1805
...ns &. C. one of the hunters killed a deer, another killed a bald Eagle, the men all returned but had not killed any thing more. The frenchmen came to us had caught 2 beav...
Apr 13 1805
Clark: April 13, 1805
...we camped on the S. S. in a butifull Plain. I observe more bald Eagles on this part of the Missouri than usial also a Small Hawk Killed 2 Antelopes in the river to day ...
Apr 13 1805
Lewis: April 13, 1805
...bout to make war uppon a neighbouring nation. Oserved more bald eagles on this part of the Missouri than we have previously seen saw the small hawk, frequently called t...
Apr 18 1805
John Ordway: April 18, 1805
...d in to the N. W. and blew hard against us. Saw a nomber of bald Eagles in Sd bottom 1 In McKenzie County, probably above the mouth of Beaver Creek. White Earth River, in...
Apr 27 1805
Lewis: April 27, 1805
...ith two or three Magpies nests within a short distance.The bald Eagle are more abundant here than I ever observed them in any part of the country.
May 7 1805
Lewis: May 7, 1805
...e since the 28th Ulto.we continue to see a great number of bald Eagles, I presume they must feed on the carcases of dead anamals, for I see no fishing hawks to supply t...
May 20 1805
Missouri River near Musselshell River — John Ordway: May 20, 1805
... Islands and 1 Which they named Stonewall Creek. Now called Eagle Creek, in Chouteau County. 2 The night's camp was "just above the mouth" of Eagle Creek. Lewis. 224...
May 25 1805
Missouri River near Musselshell River — Joseph Whitehouse: May 25, 1805
...red with handsom c. wood timber, near the N. S. Saw Several Eagles nests. passed high bluffs & knobs and hills partly covred with pitch pine timber on each Side of t...
May 25 1805
Missouri River near Musselshell River — Patrick Gass: May 25, 1805
... side with one solitary tree on it, upon which there was an eagle’s nest. The bottoms here are very small. As we went on this afternoon some of the party killed th...
Jun 26 1805
Great Falls Portage — John Ordway: June 26, 1805
...ite to 2 Islds." Lewis. According to Wheeler this is modern Eagle Rock, ten miles above the mouth of Sixteen Mile Creek. 4 Named Gallatin, Madison, and Jefferson riv...
Jul 11 1805
Lewis: July 11, 1805
... Eagles today they are a half as large again as the common bald Eagle of this country. I do not think the bald Eagle here qute so large as those of the U States; the gr...
Aug 2 1805
Jefferson River ascending toward divide — Joseph Whitehouse: August 2, 1805
...iver Shallow and rapid. passed Smoth praries &c. Saw 2 grey Eagles which had nests on the top of dry trees. Came 1434 miles this day & Camped on a Smoth plain on L. ...

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