HD wallpaper nature, dog, the border collie from the Dog category, available in 3840x2560 (4К) resolution. JPG format, file size 2.7 MB. Uploaded by lolita777 on 06.03.2026. Dominant colors: anthracite, black, brown, dark khaki. Download this wallpaper for free in any supported resolution and set it as the background on your PC, laptop, tablet or phone.