05/03/2026
"On September 3, 1978, at approximately 11:20 AM, a golden eagle took a kitten from a hillside above the village of Invermoriston in the Scottish Highlands. The kitten was approximately eight weeks old. The eagle was climbing with it — talons locked around the kitten's back, wings beating, ascending toward a thermal above the ridge. The mother cat was on the hillside below, watching her kitten go up. And then a red fox appeared from the heather. The fox and the cat looked at each other for approximately two seconds. The cat ran toward the eagle's ascending path. The fox ran the same direction. What happened in the next forty seconds was witnessed by a retired Scottish schoolteacher named Margaret Dunbar, who was walking her dog on the hillside path and described it in a letter to the Royal Scottish Society for the Protection of Birds that became one of the most controversial documents in the Society's hundred-year history."
The golden eagle (Aquila chrysaetos) is the apex aerial predator of the Scottish Highlands. With a wingspan approaching eight feet and talons capable of generating 800 pounds per square inch of grip pressure, a golden eagle in flight is essentially invulnerable to ground-based threats. They hunt rabbits, hares, grouse, and occasionally — if desperate or opportunistic — small domestic animals.
The eagle that took the kitten above Invermoriston was a female — larger than the male, as is typical in raptors. Margaret Dunbar estimated her wingspan at approximately seven feet. She was ascending on a thermal — a column of warm rising air — which allows eagles to gain altitude with minimal wing effort. She was at approximately forty feet when the fox and the cat began to run.
Margaret's letter, dated September 7, 1978, preserved in the RSPB archive in Edinburgh:
"I must preface this account by stating that I am sixty-three years old, have lived in Invermoriston my entire life, and am not given to flights of fancy or exaggeration. I taught mathematics at the village school for thirty-one years. I deal in facts. The following is fact.
At approximately 11:20 AM on September 3, I was walking my dog Hamish along the upper path above the village when I observed an eagle take what I initially believed to be a rabbit from the hillside below me. As the eagle gained altitude, I saw that it was carrying a kitten — recognizably a cat, not a rabbit, by its leg shape and the absence of long ears.
Below the eagle, a tabby cat was running along the hillside, looking upward, making a sound I have never heard a cat make — not a meow, not a hiss. A keening. A continuous, high-pitched keening.
A red fox — adult male, I believe, by his size — emerged from the heather approximately thirty meters to the east of the cat. The fox and the cat both stopped. They looked at each other. I timed this: approximately two seconds. Then they ran. Together. In the same direction. Toward the point beneath the ascending eagle.
The eagle was at approximately forty feet. The fox — I estimate his running speed at approximately thirty miles per hour — closed the distance in approximately eight seconds. He leapt. I do not know how high a fox can leap. I have never seen a fox leap vertically before. He leapt approximately eight feet — I am estimating, but I am a mathematics teacher — and his jaws closed on the eagle's left foot.
The eagle screamed. The sound was extraordinary — I have heard eagles call many times in my life, but not like this. The grip on the kitten loosened. The kitten fell approximately ten feet before the eagle regained the grip. But in that ten feet, the cat had positioned herself. She was directly below the eagle. When the kitten fell within reach, the cat jumped — I estimate four feet, possibly five — and caught the eagle's right wing with both front paws, claws extended, her full weight hanging from the leading edge of the wing.
What I then witnessed was an eagle, forty feet in the air, with a fox hanging from its left foot and a cat hanging from its right wing. The eagle was descending — the combined weight of fox (approximately 15 pounds) and cat (approximately 8 pounds) on separate sides of its body was disrupting its aerodynamic balance. It was tilting. It was losing altitude.
At approximately twenty feet, the eagle released the kitten. The kitten fell. The cat released the wing and fell. The fox released the foot and fell.
The kitten fell twenty feet onto the hillside heather. Heather is not soft — it is woody shrub — but it broke the fall. The kitten survived: two cracked ribs, minor lacerations, and a state of shock that resolved over approximately three hours.
The cat fell approximately fifteen feet. She landed on all four paws — as cats do — and immediately ran to the kitten.
The fox fell approximately eight feet onto the hillside. He rolled, shook, stood, looked at the cat, and ran into the heather.
The eagle flew east, trailing one feather from her right wing, making a sound that I can only describe as indignant.
I stood on the path for approximately five minutes. I was shaking. Hamish was shaking. Then I walked home and wrote this letter."
The RSPB received Margaret's letter and forwarded it to Dr. Andrew Sanderson, the Society's chief ornithologist. Dr. Sanderson visited Margaret in Invermoriston in October 1978 and conducted a formal interview. He found her account credible — "Mrs. Dunbar is precise, consistent, and displays no tendency toward embellishment" — and submitted a summary to the Journal of the Royal Society of Biology.
The summary was rejected — the journal's editors found the fox-cat cooperation implausible without photographic evidence. Dr. Sanderson published it instead in the Scottish Naturalist, a smaller publication, where it appeared in the spring 1979 issue.
The account was reprinted in 2003 by a wildlife journalist who found it in the Scottish Naturalist archive. It was shared on early internet forums by wildlife enthusiasts. By 2010, it had been cited in three academic papers on interspecies cooperative behavior.
Margaret Dunbar died in 1994, at seventy-nine. Her letter is still in the RSPB archive. At the bottom of the original, in her handwriting, she added a postscript that was not included in Dr. Sanderson's published summary:
"I should add: the fox and the cat did not acknowledge each other after the kitten landed. The cat went to the kitten. The fox went into the heather. They did not look at each other. There was no moment of recognition or farewell. They had done a thing together and then they were done with each other. I found this, strangely, the most moving part of the entire incident. They helped each other without expecting anything in return. Without even waiting to see if it had worked. They each did their part and then they went their separate ways. I have known humans who could not manage that."
