Is it not perhaps Chavala -- .חבלה Although the Hebrew meaning of the name Chavala is "life", in Yiddish it sometimes also meant "a little bird" I think.
I'm no expert but I can see possible confusion in the lettering and transliteration /sin/ vs /shin/ and /bet vs /vet/
In Fiddler on the roof, Tevya sings a song ``Little bird, little Chavala'' (about his daughter Chavala).
"Little Bird, Little Chavala
I don't understand what's happening today
everything is all a blur
Gentle and kind and affectionate
The sweet little bird you were
Little Bird, Little Chavala....