Depending on the size of the animal but 50 – 70 pond bows will normally be adequate with enough heavy arrows with at least 100 grain or heavier broad heads with 2 to 4 fixed blades. Remember your release, a spare string & release and judo heads or similar for bird hunting.  
According to Nature Conservation the following is recommended kinetic energy if you are close to this you will be fine:
  • Impala: 45 ft/lb energy
  • Kudu: 60 ft/lb energy
  • Blue wildebeest: 70 ft/lb energy
The formula to calculate Kinetic energy is:
(Arrow Speed) X Total arrow weight / 450240 = ft/lb energy