From Wiktionary, the free dictionary
Literally “better a sparrow in the hand than a pigeon on the roof”. The saying is widely attested in Europe and the Middle East, but the exact wording suggest a calque of German Besser ein Spatz in der Hand als eine Taube auf dem Dach.
parem varblane peos kui tuvi katusel
- a bird in the hand is worth two in the bush