The expression
happy like a bee reminds me of English expressions
-merry as a cricket (= greier - insect)
-happy as a
lark (=
ciocârlie - bird)
In Romanian language there is the expression
vesel ca un cintezoi (male
chaffinch).
Ion Creangă (a famous Romanian writer) wrote în
Amintiri din copilărie (
Memories of My Childhood):
”
...și eu eram vesel ca vremea cea mai bună” = I was happy as the best weather
I understand that you are looking for the etymology of the Turkish expression and you asked also the Romanian speakers, right?
Anladığım kadarıyla Türkçe deyimin etimolojisini arıyorsunuz ve Rumence konuşanlara da sordunuz değil mi?