>>1048977My friend also owned several chickens in his backyard and I came to conclusion that these animals do not possess any intelligence
Then again, all of the eggs these chicken produced had something called "double-yolk", pic related. It was definite characteristic of these eggs.
We later learned that this occurrence was caused by inbreeding of the breed.
So can you imagine how fucking dumb those animals were? They were chicken, but they were also inbred.