Reading the weather in Devon from the movements of animals - Ants

Formica exsecta, the Narrow headed ant.  Bovey in Devon houses the only known English colonies of these rare ants. By  April Nobile / © AntWeb.org / CC-BY-SA-3.0 , via Wikimedia Commons

"Ants moving their eggs denotes rain, for by a secret instinct of nature finding the air changing into much moisture, they carry them to a place of drier security."

Hewett 1900