Hmm I've never smelled a goose (or a duck before). Is it similar to a chicken?
My sun conure has a nice, comforting smell (to me anyhow). His breath, the best I could describe it, smells like a puppy's breath before they eat solid food, which I love. It also tends to smell like whatever he just ate but the puppy smell is a constant. Particularly strong right after he wakes up in the morning or after a bath.