Pituophis catenifer sayi
Key traits and size details for Bull Snake.
Length
Weight
Lifespan
The Bull Snake (Pituophis catenifer sayi) is the heavyweight character actor of the colubrid world. Large, loud when defensive, and full of bluff, it can seem intimidating until you understand that much of the drama is performance. In captivity, bull snakes can become excellent, engaging pets for keepers who like robust animals and do not mind a little attitude. They need secure enclosures and confident handling, but they reward consistency. A good bull snake is bold, visible, and never boring.
Native and introduced range details for Bull Snake.
Explore the highlighted native and introduced range for this species. Hover or tap a country to inspect it on the map.
Bull snakes are native to Central North America, following the parent Gopher Snake account where sayi is listed from southern Alberta and Saskatchewan through the central United States into northern Mexico.
No sourced temperature range yet.
No sourced humidity range yet.
Reference size-over-age data for Bull Snake.
Species reference size over age, built from curated catalog points rather than an individual reptile record.
Add at least two length or weight points to plot a species reference curve.
Housing, feeding, and handling guidance collected in one place.
Give Bull Snake more usable space than a minimal rack-style setup, with branches, cork, hides, and open travel routes for regular cruising.
Use a sourced species-specific thermal gradient rather than a generic snake setup. Track humidity with a digital hygrometer and adjust only from sourced guidance. If UVB is used, match the stored Ferguson Zone 2 / UVI 0.7-1.0 target at the basking position.
Prey size should be 1.0-1.25x widest body part.
Feed Bull Snake appropriately sized thawed prey and adjust meal size to body condition, not just appetite, because active colubrids often eat readily.
Use steady two-handed support for Bull Snake; active snakes often move constantly, so guide rather than restrain them.
Approved catalog and community photos for Bull Snake.
No approved gallery images are available for Bull Snake yet.
Browse approved catalog images and community-submitted reptile photos for Bull Snake. Community images retain contributor attribution in both the gallery and expanded view.
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