Breeds like the Standardbred

• American Bashkir Curly — Eponimm · CC BY-SA 3.0 · file page
• American Belgian Draft — Richard · CC BY 2.0 · file page
• American Cream Draft — Jean · CC BY 2.0 · file page
• American creme and white horse registry — GOETZ Christine · CC BY-SA 4.0 · file page
• American Drum Horse — Ultra7 · Public domain · file page
• American Indian horse — JD Lamb · CC BY 2.0 · file page
• American Miniature Horse — agriflanders · CC BY 2.0 · file page
• American Paint Horse — Betty Wills · CC BY-SA 4.0 · file page
• American Quarter Horse — José Reynaldo da Fonseca · CC BY 2.5 · file page
• American Saddlebred — Just chaos · CC BY 2.0 · file page
• American Shetland Pony — Montanabw · CC BY-SA 4.0 · file page
• American Warmblood — Josette · CC BY-SA 4.0 · file page
• Appaloosa — Darrell Dodds · CC BY-SA 3.0 · file page
• AraAppaloosa — Heather Moreton · CC BY 2.0 · file page
• Banker horse — Tania Gail · CC BY 2.0 · file page
• Camarillo White Horse — Haase B and others · CC BY-SA 2.5 · file page
• Carolina Marsh Tacky — Anthony Surbeck · CC BY 2.0 · file page
• Chincoteague pony — dbking · CC BY 2.0 · file page
• Conestoga Horse — Internet Archive Book Images · No restrictions · file page
• Cumberland Island horse — Bonnie Gruenberg · CC BY-SA 3.0 · file page
• Florida Cracker Horse — Frederic Remington · Public domain · file page
• Friesian Sporthorse — Serendipityblue · Public domain · file page
• Georgian Grande Horse — Michael Miley · Public domain · file page
• Kentucky Mountain Saddle Horse — Kittymama · CC BY 3.0 · file page

Photographs come from Wikimedia Commons under the licence each one names. How Animalso credits photographs.