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Rare Evening Bat Discovered in Northern Colorado

2/12/2026, 2:29:58 PM

Discovery of the Evening Bat

A rare evening bat (Nycticeius humeralis) was found in a resident's yard in Wellington, Colorado, marking the first known sighting of this species in northern Colorado. Previously, the evening bat had only been recorded three times in the state. The bat was initially mistaken for a more common species before being taken to the Northern Colorado Wildlife Center for further examination.

Characteristics and Condition of the Bat

The evening bat is a small and lightweight species, weighing approximately 7 grams, comparable to the weight of seven pennies. Upon discovery, the bat was not injured but was found to be dehydrated and slightly underweight. Wildlife experts at the center are currently providing care to ensure its recovery, with plans to release the bat back into the wild in the spring of 2024.

Investigative Efforts and Possible Explanations

Wildlife experts, including those from the Northern Colorado Wildlife Center and Colorado Parks and Wildlife, are investigating how the bat ended up in northern Colorado. One hypothesis is that the bat may have been displaced by adverse weather conditions, potentially being blown off course. Alternatively, there is a possibility that the bat's roost could be located in the region, suggesting the existence of a local population. Michela Dunbar, Executive Director of the Northern Colorado Wildlife Center, noted, “If there’s a population of them in northern Colorado, that would be interesting to learn.”

Importance of the Sighting

The discovery of the evening bat in Wellington is significant as it could indicate changes in the species' distribution patterns, possibly influenced by fluctuating weather conditions. Dunbar mentioned that when temperatures rise, bats may leave their roosts prematurely, which could lead to unusual sightings.

Official Statements & Responses

Wildlife officials are collaborating to assess the situation and determine the best course of action for the bat's release. The Northern Colorado Wildlife Center is actively involved in the care of the bat and is working with state agencies to gather more information about its origins.

Criticism & Opposition

While the discovery has been met with interest from wildlife experts, there are concerns regarding the impact of climate change on bat populations and their habitats. Critics argue that such rare sightings may become more common if environmental conditions continue to shift.

What's Next

As the investigation continues, wildlife officials will monitor the bat's recovery and plan for its release. The findings from this case may contribute to a better understanding of the evening bat's habitat and behavior in Colorado.