Being a relatively new goose hunter, I’ve gathered, for instance, traditional shell decoys are effective in the late season during extreme cold spells and/or snow covered fields, because it is common for geese to lay down in those conditions, as shell decoys present. When Canada geese see a spread of shell decoys in earlier parts of the season, when geese are not typically lying down, do they process what they’re seeing and think, hey, there’s a bunch of geese lying down in a dry field when it’s only 45 degrees, so that ain’t right, we are outta here? So many guys report custom decoys are so ultra realistic they are commonly more successful with a fraction of the decoys, using a mere handful to no more than 12-18 custom decoys, and shooting more geese than they did when they were using five or more times the number of decoys. A couple of the custom decoy brands are spectacularly realistic, but some of the other more widely produced and less expensive decoys are looking pretty darn nice too. Do Canada geese really pick up the small details that make the customs even more realistic, and become more convinced there is real geese down there, more so than when they see other quality and realism respected, albeit mass produced decoys down there?