Many times I have tried to take decent photos of a Common Cuckoo but they are hard to approach.
This time, however, the bird remained sitting on the wire while I was slowly getting closer.
It didn't seem frightened at all and it let me get as close as 12 meters from it and make these nice photos until it eventually flew off.

Jurilovca area, Tulcea County, Romania, 21 May 2018