A pregnant cow is said to be "moving on" from the ordeal of getting her head trapped in a wall for several hours.
The distressed animal had to be sedated by a vet while firefighters used heavy breaking equipment to rescue her.
The animal had put her head through the window of a wartime guard post at Gibraltar Point nature reserve in Skegness, Lincolnshire.
Her neck swelled up, trapping her further, but firefighters freed her at about 17:30 BST on Thursday.
The cow, a Lincolnshire Red, had been trapped since at least 10:30.
In a statement, Lincolnshire Fire and Rescue service said the cow "seems to be fine and moving on from the ordeal".
Spencer Creek, technical rescue manager, said: "Compared to fighting fires this may seem a little bit strange, but because of the county's rural nature animals do occasionally get into danger.
"Normally when this does happen they have become stuck in mud or water, so this was a bit different."