Some translated Portuguese ones that I remember from my mother:
My neighbour's chicken is always fatter than mine.
Don't count your eggs before they are laid.
The most tasty chicken is always someone else's.
Neither care nor chicken broth harms an invalid.
Behave like a chicken indoors, but like a queen in the street! (I don't think I ever actually understood this one)
it's the chicken, rather than the cockerel, who's the boss at Gonçalo's house.
You'll find neither bug nor flea in a chicken run.
Chickens and sardines both taste the same from your neck down.
It's better to have bread and water served with love than good wine and chicken served with bitterness.
You'll never find peace in places where chickens and cockerels crow together.
Old chickens make for the most substantial meals.
SS