These owls really look to be made of stone.  Surface looks rough but is quite smooth to the touch.  The white marking are enlayed, recessed eyes with pupils and beaks raised.  They are hollow and the taller owl can be easily tipped over.  The short one has a broader base and is very stable.  There is no hole in the bottom of either owl.  Due to the material these are made of, a Mason is going to do it and fill them partially with sand.  Have applied protective sealer for sun.  So nice to have statuary of larger size, these will get noticed and every so adorable.