A little investigation turned up that Ring-necked Ducks do not commonly eat acorns but it has been documented. They have the most diverse diet of the Ayathya ducks. They generally eat while underwater but bring up food to "process" - like removing the food from the shell with clams, snails, caddisflies. etc. Were they removing the little cap of the acorn before swallowing? I also found that in some areas, acorns make up almost the entire diet of Mallards and Wood Ducks in winter.
Glenn Williams
Mystic
A little investigation turned up that Ring-necked Ducks do not commonly eat acorns but it has been documented. They have the most diverse diet of the Ayathya ducks. They generally eat while underwater but bring up food to "process" - like removing the food from the shell with clams, snails, caddisflies. etc. Were they removing the little cap of the acorn before swallowing? I also found that in some areas, acorns make up almost the entire diet of Mallards and Wood Ducks in winter.
Glenn Williams
Mystic
