Lots of marks on the back of this Art Deco beauty, but the only one I can make out (more or less!) looks like 8095 B&A.   One of the marks is probably 925 or Sterling, but that's a guess.  The 3-D bird is loaded with bead-set marcasites.  Overall size is 2-1/4" x 1-1/4" and condition is excellent.