Common Cuckoo parasitising Common Redstart nest in an occupied bedroom

In June 2019, I was surprised to receive a message from my sister, who lives in a tiny hamlet (c. 40 homes) near Villa Minozzo in Emilia Romagna, northern Italy, saying that ‘the neighbours… usually have a nest… between the window and shutter of [their son’s] bedroom… and this year a cuckoo has used it.’ A photograph confirmed it: her neighbours’ son was indeed sharing his bedro

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