$175-$200 is fair. Dont know the circumfirence of the tree but a clean drop of only 16' is small compared to alot that i have done. Boom its on the ground cut in to log pieces and brush thrown on truck in 1 1/2 hours. If you had a chipper 1 cut and depending on circumfirence that sucker would be done and gone in the twenty minutes you aloud. Birch is good wood for the fire place too. I usually charge an average fee of $50 (depending on how much firewood there is) to get rid of it, of course if its good enough to keep, my gain. sharpen your chain before starting too, so you dont look like a ying yang, and take a spare.