Lewis & Short

mŏnēdŭla, ae, f., a jackdaw, daw, Corvus monedula, Linn.: examina graculorum monedularum, cui soli avi furacitas auri argentique praecipue mira est, Plin. 10, 29, 41, § 77; 17, 14, 22, § 99. Acc. to the myth, the nymph Arne was turned into a daw, for having betrayed her country for gold, Ov. M. 7, 465 sq.
Prov.: non plus aurum tibi quam monedulae committebant, Cic. Fl. 31, 76.
As a term of endearment, Plaut. As. 3, 3, 103; cf. id. Capt. 5, 4, 5.