"After 16,000 years of domestication, the breed began to fall from favour in the middle of the 20th century as farms were mechanised and tractors and cars replaced horses. In the 1940s, there were between 40,000 and 60,000 Garranos in Portugal. Current estimates put the total population at 1,500-3,000."

https://www.theguardian.com/environment/2024/jan/01/portugal-efforts-to-save-the-garrano-pony-ancient-breed-extinction