That's interesting. Here in the UK there is a decline in the Noctule bat, a
fairly large one that flies in the early evening, sometimes mingling with
swifts etc and may actually take honeybees (keeping on topic!). The suspected
cause of the dwindling is lack of insect prey as farm insecticides get more
efficient. There may actually be poisoning through eating flying beetles that
have been eating dung that has come from cattle that have been drenched with
an insecticide (may have been a wormer). The food chain is long and
complicated and all things are connected.
Chris
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