[Neil]

Originally Posted by MargaretR

Is is Ok to feed your ducks with homemade brioche crusts?

No it is not ok to feed ducks bread Tetrapod Zoology : STOP 'feeding' the ducks

When wild ducks are fed human food (especially bread or crackers) their organs become engorged and fatty, which can cause them to suffer from heart disease, liver problems and other health complications. Bread also has very few nutrients, and can get compacted in a bird's crop. Many rehabilitators see "bread-impacted crop" in sick and distressed park ducks.

Waterfowl at artificial feeding sites are often found to suffer from poor nutrition. In a natural setting they will seek out a variety of nutritious foods such as aquatic plants, natural grains, and invertebrates. Bread is very low in protein, contains additives that wildfowl aren't built to cope with, and it's a very poor substitute for natural foods. Ducklings fed bread miss out in vital nutrients during their critical first few weeks, causing splay leg, angel wing, slipped tendons and other growing defects.