This all seems odd, when we're also being told that global warming is the most serious threat to wildlife ever

Mysterious bat fungus in the US could spread nationwide | Business News | Jerusalem Post

A mysterious fungus attacking bats in the US could spread nationwide within years and represents the most serious threat to wildlife in a century, experts warned Congress earlier this month.
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As a state wildlife biologist from Vermont put it, one cave there was turned into a morgue, with bats freezing to death outside and so many carcasses littering the cave's floor the stench was too strong for researchers to enter.
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"We are witnessing one of the most precipitous declines of wildlife in North America," said Thomas Kunz, director of the Center for Ecology and Conservation Biology at Boston University, who said that between $10 million and $17m. is needed to launch a national research program into the fungus.
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The fungus attacks bats during winter hibernation, when they are most vulnerable and their temperature is lowered so they can last through the winter on the fat they have put on by feasting on insects. Research has shown that the fungus thrives in cold temperatures, and the densities of bats huddled on the ceilings and walls of caves likely help it to spread.