To see a loon in your dream, suggests that you have the ability to dig deep and bring up unconscious wisdom. You are looking within yourself for answers. It is time for self-exploration, self-reflection and introspection. You need to get tot he bottom of some situation. The dream may also be a metaphor for someone who is "loony" or crazy.
To see an eagle in your dream, symbolizes nobility, pride, fierceness, freedom, superiority, courage, and powerful intellectual ability. It also represents self-renewal and your connection with your spirituality. You will struggle fiercely and courageously to realize your highest ambitions and greatest desires. Alternatively, if you live in the United States, then the national bird could represent your patriotism and devotion to country.
To see a heron in your dream, represents self-reliance, stability, and careful forethought. You will achieve much success through your efforts. Alternatively, it signifies your ability to explore and delve into your unconscious.
To see geese in your dream, represents domesticity and lifelong companionship. It may also indicate your tendency to go with the crowd. You are well grounded.
Although the dreams of the waterfowl come and go in my REM state and Old Trunks would love to claim it is all about the definition, perhaps, it is nothing more that hundreds of images actually taken with a camera. Might one say if you saturate oneself during the day you see them in dreams?
Think about it.