Wildlife
Bullsnake, Say’s pine snake
Pituophis catenifer sayi
Habitat
Niobrara
Conservation
Apparently secure
First Observed
1804-08-05
Lewis provided a complete description of this species. He even reported the name came from its “bellowing” like a bull.
Recent sightings
Where it’s being seen today
19 research-grade iNaturalist observations between 2023–2025. Most recent: 2025-09-08. Sourced from Terrain360 trail captures, cached locally.
Journal References
15 journal entries mention Bullsnake, Say’s pine snake
Jun
7
1804
Missouri River near Osage River — Charles Floyd: June 7, 1804
...l and other things We Kild
1804] FLOYD’S JOURNAL
3 Rattel Snakes at that Rock 5 miles to Creek on the N
Side Called Good woman Creek Strong watter past severall
Is...
Jul
25
1804
Near Platte River, Council Bluffs area — Charles Floyd: July 25, 1804
...miles Came to on the South Side to Dine rest a
Short time a Snake Bit Jo. Fieldes on the Side of the foot
which Sweled much apply Barks to Coor [cure] and passed a
C...
Jun
28
1805
Great Falls Portage — Joseph Whitehouse: June 28, 1805
...out in order to go on to the 3
forks, expecting to find the Snake nation, near that place.
Some cloudy. the Musquetoes verry troublesome. I cannot
keep them out of m...
Jun
29
1805
Great Falls Portage — Joseph Whitehouse: June 29, 1805
...pleanty of Elk sign. we Saw a great many different kinds of
Snakes along the R [iver].
Oct
8
1805
Clearwater to Snake River — John Ordway: October 8, 1805
Sometime changing the officers canoes &C. hid a canister of Powder by a broken top tree, about 9 oClock we Set out and proceeded on...
Oct
8
1805
Clearwater to Snake River — Patrick Gass: October 8, 1805
our voyage down the river: passed three islands and several rapids; and at noon stopped at some Indian lodges, of which there are a great...
Oct
9
1805
Clearwater to Snake River — John Ordway: October 9, 1805
I went with Eight men after the remainder of the meat, rained hard all day. we returned towards evening with the meat and found the...
Oct
9
1805
Clearwater to Snake River — Patrick Gass: October 9, 1805
... we got her completed and all the baggage dry. Here
our old Snake guide deserted and took his son with him. I
suspect he was afraid of being cast away passing the ra...
Oct
10
1805
Snake River rapids, near Lewiston — John Ordway: October 10, 1805
rainy morning, the waves not So high as yesterdy we loaded the canoes and Set out and went on passed high clifts of rocks, and...
Oct
10
1805
Snake River rapids, near Lewiston — Patrick Gass: October 10, 1805
and passed over some very bad rapids. In passing over one a canoe sprung a leak, but did not sink; though the greater part of...
Oct
11
1805
Snake River rapids, near Lewiston — John Ordway: October 11, 1805
huts, rained the greater part of the day. George Gibson Sick. Thcrsday 12th Decr 1805. a number of the Clatsop Indians visited us. we finished...
Oct
11
1805
Snake River rapids, near Lewiston — Patrick Gass: October 11, 1805
ceeded on about 6 miles, and halted at some lodges of the natives, where we gof fish and several dogs. We continued here about an...
Oct
12
1805
Snake River rapids, near Lewiston — John Ordway: October 12, 1805
... had reached the point where the Clearwater loses itself in Snake
River, the great southern fork of the Columbia. The towns of Lewiston, Idaho,
and Clarkston, Wash.,...
Oct
12
1805
Snake River rapids, near Lewiston — Patrick Gass: October 12, 1805
early. Two of the Flathead chiefs remained on board with us, and two of their men went with the stranger in a small canoe, and...
Oct
13
1805
Snake River rapids, near Lewiston — John Ordway: October 13, 1805
untill about 10 oClock then took down one canoe at a time be- low the rapids, all the men who could not swim carried each...