First attributed by Pijl. When exhibited in Worcester it was attributed to Bril with figures by Jan, which is understandable (the surface is a little hard and pastey for Jan) but not likely. The dating to ca. 1593 is at Pijl's suggestion as well, by comparison to Ertz 1979 #4 of 1594.
There is a painting sold Sotheby's NY December 29 2009 #10 as a JB that is, i think, a version of these but very very small--11.6 x 16.6, and on copper. I don't think the faces of the hunters here are convincing as JB. They say it's on a copper plate by Peeter Stas which would make it a work (or a studio variant, more) from Jan's Antwerp period.