it reminds me of a vase I have that I think might be by Feigl and Morawetz. Or something to do with Libochovice. I seem to recall looking mine up ( no notes lol), mine has birds on, and there was a horse vase in the series and a fish one iirc and some floral ones as well.
I'll have a look to see if I can find the reference. For some reason I think it was on one of Frank's sites that I initially found it - some articles on animals in glass.