Having a high energy level is key to winning races. Make sure to eat a lot to increase your energy between events.
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Collect as many gold coins as possible, then trade them for food, skill-boosting bird seed, or cool accessory items.
Easy flying level
Allow your duck to fly straight until he cannot do so any more. When he starts to go down, start to pitch in. Keep him flying as long as possible when he begins to go down. Then, repeat the tactic.
Easy Midnight Black color
Go to the expert races. Enter the Over The Volcano race. As you are running, fly into the lava. Your duck will not die. Instead, it will turn black.