Coucou de Rennes Chickens ; is a breed developed by Doctor Ramé in the Rennes region at the beginning of the 20th century. Doctor Ramé’s standard requires roosters and hens of the same color (dark cuckoo), whereas the rooster usually comes in a lighter shade genetically.
- Rooster: 3.3 – 3.5 kg;
- Hen: 2.7 – 3.2 kg
Almost disappeared a few years ago, this breed is currently thriving.


Also known by the names : Rennaiser Sperber, Rennes Sperber, Sperber von Rennes, Coucou de Rennes, Sparviero di Rennes, Cuclillo de Rennes, Koekoek van Rennes, Kukułka z Rennes, Renn šarena kokoš
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