by Zoe Pollock

Nige notes the rise of birdsong at night and references a recent study suggesting that it's because urban areas are too noisy in the daytime:

Nocturnal birdsong - once so seldom heard that hearers would assume (nearly always wrongly) it was the nightingale - is likely to become an established feature of the urban soundscape. One can only hope all these sleepless night aren't turning the birds into groggy irritable wrecks and ruining their days.

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