Breed Group: Herding

Size: Medium

Height: 18-23 inches

Weight: 40-65 pounds

Coat Type: Double, medium-length

Coat Colors: Blue Merle, Red Merle, Black, Red

Temperament: Loyal, Intelligent, Energetic

Energy Level: High

Good with Children: Yes

Good with Other Pets: Yes

Trainability: High

Barking Tendency: Moderate

Lifespan: 12-15 years

Health Issues: Hip Dysplasia, Progressive Retinal Atrophy

Exercise Requirements: High

Hypoallergenic: No

History: Developed in the United States, popular among ranchers and farmers.