Vintage owl crystal/glass etched pendant

This is the most adorable thing ever! It is in great condition for its age except for There is some discoloration on the owl which is etched into the glass or Crystal I’m unsure of which one it’s made out of. The silver piece on top has a little bit of discoloration. Thank you for taking a look at my closet :-)! Have any questions please ask prior to purchase. My home is smoke-free I do have pets