medium-sized, short-haired dog with a brindle coat and white markings on its legs and neck walking in a field

medium-sized, short-haired dog with a brindle coat and white markings on its legs and neck walking in a field. The field is covered in dry straw and some green grass. There is a ditch or small ravine visible in the background. The sky is overcast. The dog is sniffing the ground as it walks.