Vintage STUNNING Bird nest pearls enamel brooch pin gold

Very unique and stunning brooch! This is a gold bird carrying twigs to her nest of pearl eggs, on a black enamel round base. 1.75" diameter. This is 3D and so much nicer in person. This was from an estate find and I'm unsure of the age. I would guess around the 80's 90's . I could be wrong it could be older, I can't find another one like this anywhere, and it's unbranded. listing vintage and new jewelry daily, bundle and save, reasonable offers welcome.