Ducking for apples

The following was put on the Calderale Wildlife Network Noticeboard by Philip Marshall of Todmorden.

I was watching a couple of Mallard ducks by the river at Barley near
Pendle Hill yesterday. They were busy swallowing small apples which had
dropped from a crabtree; I didn't know they ate fruit and the effort in
swallowing some of the larger apples looked very painful!

Philip