After crawling commando style across a farmer's field, getting drenched by dew in the process, my advance towards a rise and a clean sight line to a red fox den was halted by the sight of this adult fox out of the corner of my eye. She was trotting back to the den after a successful morning hunt. Halfway across the field, she noticed me where I lay and stopped dead in her tracks. Suddenly, she dropped what was in her mouth made a terrible screech of a warning call to the youngsters nearby. She ran to the den and took all the young kits inside. I made a very quick trip up the field to see what she had been carrying. It was the head end of a female mallard duck!