Normally we don't think of "subtleties" and sugar season in the same breath. After all, there's nothing subtle about preparing for a season that may only last two weeks (or in last year's case, one week!). Yup, for Vermont maple sugarin' where "t'all happens t'once", a better word would be "frenetic". There are, however, some "sweet" subtleties involved but to enjoy them, you've got to be old like me and thoroughly "steeped" in maple sugarin'. Take, for instance, the birds.