Nourishing Suet

{x}, Sacrifice Nourishing Suet: Up to X+1 target Bird(s) and/or Squirrel(s) get +2/+2 until end of turn. You may kick this ability for {1}{g}; if you do, put 2 +1/+1 counters on target Bird(s) and/or Squirrel(s) instead.
A must-have for any bird enthusiast.