Cuckoo Warning Day

Cuckoo Warning Day has always been observed annually on the first day of Summer.

Cuckoo Warning DayImage: Google Image

When is Cuckoo Warning Day?

  • Cuckoo Warning Day 2017 is observed on Wednesday, June 21, 2017
  • Cuckoo Warning Day 2018 is observed on Thursday, June 21, 2018
  • Cuckoo Warning Day 2019 is observed on Friday, June 21, 2019
  • Cuckoo Warning Day 2020 is observed on Sunday, June 21, 2020

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