h In December 2004 an additional horse, 20 year old Trakehner stallion Atalanta, came into our care. We did a lot of researches to find out about the best way to get two mature stallions (both had served) accustomed to each other but found close to nothing. Apparently nobody else tries to bring two foreign stallions together or, if they do, they seem to keep their experiences for themselves.
Atalanta had spent many years, in all probability his whole life even, in solitary confinement - sharing the sad fate of most stallions. Hence he overreacts entirely when spotting another horse, let alone a stallion. Although not aggressive by nature, he is hardly amenable in such a situation.
This did improve somewhat by doing ground work with him, such as Basic Education, Lungeing and later on also Double Lungeing. However, the behaviour described seems to be hard-wired beyond repair in a 20 year-old horse. Atalanta is fine in work but when he is in his paddock certain situations seem to trigger old films in his mind that are repeated over and over again. So we thought Atalanta would surely benefit from a mate or, better even, a herd.
The first two weeks we kept the two stallions, Oene and Atalanta, separated but within sight of each other. After a day or two they stopped screaming and pacing fences, just stared at each other, dropping manure demonstratively close to the fence.
Unlike in the scenarios before, these were two fully mature stallions; Oene being the undisputed leader of a herd all his adult life, Atalanta never having learned social horse behaviour; none of them had ever submitted to another horse; both stallions had served. So, yes, there was a risk of injury but still we thought it worth a try.
When the stallions gradually settled down and even the staring dwindled, we put their halters on them (as a sort of "emergency handle"), led them into a paddock and - let go:
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