A mallard's nest with six eggs in it caused runners and riders to duck out of a fence at a racecourse.
Officials at Sedgefield altered the course after finding the mother-to-be and her nest on the apron of the sixth fence at the County Durham course.
Clerk of the course Phil Tuck said: "She is sat on six eggs and it would have been impossible to jump it safely so we decided to bypass the fence.
"It was a fairly simple procedure.
"She will be there for another two or three weeks we think."
There will be no more racing at Sedgefield until August 27 after the meeting on Tuesday, giving the mallard time to raise her ducklings in peace.
Appropriately for an event disturbed by a duck, trainer Donald McCain had the first three winners and Samantha Drake was due to ride in one of the afternoon's races.