Cooperative Stallion Behavior Observed in a Band of Feral Ponies on Shackleford Banks

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A bay stallion and a liver chestnut stallion resting with their band of ponies on Shackleford Banks
We came upon this band of ponies napping. The bay on the left is a stallion as is the liver chestnut on the right.

On our fifth day out, we came upon a band of four ponies at rest. I quickly realized this was a rare band combination of two cooperative stallions. I believed that the bay stallion was the head stallion, also known as the breeding stallion, and that the liver chestnut stallion was the lieutenant stallion. Some breeding stallions allow for a lieutenant or satellite stallion to help them keep their mares. The job of the lieutenant stallion is to defend the herd and help the main stallion keep and protect his mares so that he can focus mostly on breeding them.

The band was nicely at rest when we arrived, and we began observing them. We kept our distance, watching from a hillside about 300 feet away. Three of the ponies were resting on their feet, and one mare was lying down beside the head stallion. All of them oriented in our direction as we approached and settled in to watch them. The ponies lowered their heads and went back to resting, with both the stallions maintaining a rather sleepy and relaxed watch. The dark bay mare, who was lying down next to the head stallion, rolled out in a pile of soft sand so that she was prone on her side with the sun shining down on her. They looked relaxed in the sun in their little low valley between the dunes, out of the relentless wind.

We came upon this two stallion band at rest on the west part of Shackleford Banks
The bay stallion maintaining a sleepy vigilance as his band rests

Slowly, as we watched, the feeling of peace and relaxation spread throughout the band. The next pony to join the dark bay mare lying down was the older, blond chestnut mare with the grayed-out face. She had a freeze-brand National Park Service identification number, 12N, on her left flank. Then the liver chestnut lieutenant stallion lay down. Soon after, the bay stallion joined them. They all looked so peaceful. After some time, the older, blond mare got up to keep watch. A while later, something in the wind or a noise caught the liver chestnut stallion’s attention, and he got to his feet.

Mares lying down resting while the bay and liver chestnut stallions stay alert on watch
Mares down and stallions attending to the watch
The liver chestnut lieutenant stallion lying down next to the resting mares
The lieutenant stallion joins the mares laying down
The liver chestnut lieutenant stallion resting on the ground with the band nearby
He’s out but it won’t be a long nap
The full band of ponies resting together on Shackleford Banks
The whole band at rest
A peaceful rest for the whole band
The older blond chestnut mare with a grayed-out face standing watch over the resting band
The older blond chestnut mare takes the watch
The liver chestnut lieutenant stallion rising to his feet after sensing something
The lieutenant stallion heard or smelled something and gets to his feet
The lieutenant stallion greets the arriving mares. It took me till after we had filmed this to realize the arriving ponies were mares and not stallions

The lieutenant had smelled or heard the arrival of two ponies. He immediately went off to greet them. I could tell that he was probably familiar with them as he had a short and quiet greeting with each of the new arrivals, which we were shortly able to determine were mares and not stallions. One of the mares looked pregnant, and the younger one seemed young. She was perhaps her daughter.

The chestnut stallion showed a little sexual interest in them, but did not try to mount either of them; instead, he just grazed behind them. He moved them along towards the rest of the band by snaking his neck at them. The bay stallion came over to graze with the new mares. He did not even bother to sniff noses, which made it pretty clear that he knew them already. The lieutenant stallion moved off when the bay stallion came over to the new mares as if being careful not to challenge him.

The dark bay mare and the chestnut mare never even went to greet the other mares. It was interesting to watch the dark bay mare check in with the older blond mare as if to inquire if everything was okay, after the arrival of the new mares. She sniffed the older mare’s flank gently as they were walking along and then let off a series of yawns as if to release some tension from the arrival of the other mares. It was also interesting to watch the two mares and the stallion bunching together, and all watching the chestnut stallion when he ran over to greet the arriving mares.

The bay stallion grazing with the newly arrived mares, standing butt-to
The bay stallion, butt-to, grazes with the newly arrived mares
The liver chestnut stallion moving off alone as the bay stallion grazes with the new mares
The chestnut stallion in the back right moves off by himself as the bay stallion grazes with the newly arrived mares
The whole band of ponies grazing together on Shackleford Banks
The whole herd grazes together
The bay stallion and original mares moving off while the new mares rest in the foreground and the chestnut stallion stands nearby
The bay stallion and the original mares we saw move off, while the new mares take a rest in the foreground. The chestnut stallion is on the right of the mares
The bay stallion leaving with the two original mares, followed by the liver chestnut stallion
The bay stallion leaves with the two original mares, followed by the chestnut stallion
The liver chestnut stallion looking between the departing band and the two new mares resting behind
The chestnut stallion looks torn between the original two mares and the bay stallion, and the two newly arrived mares who have opted to stay behind for a rest
The liver chestnut stallion looking back over his shoulder at the newly arrived mares
The chestnut stallion looks back at the newly arrived mares
The two newly arrived mares resting instead of following the rest of the band
The mares have opted to stay behind and rest and not to follow the rest of the band
Bernie watching the two mares rest as the rest of the band moves off in the distance
Bernie watches the mares rest as the rest of the band moves off

We left the scene, the two new arrivals still napping peacefully, and the rest of the band moved off together to feed on the cordgrass dunes next to the ocean. The peace and harmony of this band were palpable. This is not a feeling we think of as possible among domestic stallions around mares in estrus, let alone just turned out together in a single sex pasture. The interesting thing was how few scars these stallions had. It’s just a pause for thought on the effects of the unnatural way we keep domestic stallions, which can exacerbate their aggressive behavior. Here, among this harsh, nutrient-poor island, were two stallions sharing peace and cooperation with each other and their harem of mares.

For other posts about our trip to Shackleford Banks studying the ponies and living aboard the sailboat Grit go to https://www.consideringanimals.com/ and to https://riverearth.com/

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