This article summarizes warnings from Colorado Parks and Wildlife about rattlesnakes waking from brumation as spring warms. It covers what hikers, families, and pet owners need to know to stay safe.
It explains where snakes are likely to move and what they eat. The article also shares practical steps you can take to reduce encounters and bites during March and April in Colorado.
Spring Brumation and Rattlesnake Activity
As temperatures rise, rattlesnakes across Colorado emerge from brumation and rejoin the landscape, particularly in the transition from winter to spring. Adults often migrate several kilometers from their winter dens in search of food.
They frequently use pavement and other hard surfaces to bask in the sun during migration. This can put them on the paths of hikers and runners.
This seasonal shift increases the likelihood of human encounters. Encounters are especially likely in the late afternoon and early evening when snakes actively hunt for prey.
Where encounters are most likely and how snakes move
During this period, rattlesnakes are more visible as they travel from dense winter cover to sunlit zones. They commonly use roads, trails, and bare ground to soak up warmth.
This behavior brings them into closer contact with people who are outdoors for recreation or work. Observers should be mindful that snakes may lie in wait along edges, rock piles, and brush where prey might be hiding.
Diet, behavior, and encounter patterns
Rattlesnakes have a diverse diet that includes small mammals, lizards, birds, spadefoot toads, and occasionally carrion. Officials emphasize that rattlesnakes generally try to avoid humans and will retreat before resorting to a defensive bite.
Their strategy is ambush and patience; they blend in with their surroundings and wait for prey. Careful footing is essential for anyone exploring outdoor spaces where they may be hidden.
Safety Tips for the Public on Trails and in Parks
People in Colorado should exercise caution on trails and in natural areas where snakes may be present. The National Park Service and CPW advise practical steps to reduce risk, including staying aware of your surroundings and dressing appropriately.
Supervising children and pets closely is important. Even if you don’t hear a rattle, you should treat a potential sighting as serious because juveniles may be quiet and an adult’s rattle can break off.
General precautions for hikers and outdoor enthusiasts
- Stay calm and give snakes space. A sudden movement can provoke a defensive bite. Back away slowly if you encounter a snake and alert others nearby.
- Walk where the ground is clear. Be prepared to pause and scan the area ahead to locate a suspected snake before stepping forward.
- Wear appropriate clothing, including long pants and high boots. This is especially important on rocky or brushy trails where snakes hide.
- Use gloves when moving rocks or brush. This helps avoid accidentally disturbing a hidden rattlesnake.
- Do not rely on hearing a rattle. Juveniles may lack a rattle and adults’ rattles can break off over time.
- Keep children and dogs close on trails. Avoid letting pets probe rock piles, holes, or brush where snakes may be hiding.
- Watch where you step or reach. Rattlesnakes blend well into their surroundings and may lie in wait for prey or a careless passerby.
In the event of a sighting, experts recommend pausing and backing away slowly. Give the snake a wide berth.
If you are with others, calmly communicate the location and help everyone move to a safe distance.
Do not attempt to handle, relocate, or kill the snake. Contact local wildlife authorities or park staff for safe guidance.
Here is the source article for this story: Colorado Wildlife officials warn of rattlesnake encounters as the reptiles wake up this spring