close-up of german shepard brown eye looking straight at us - guard dog stock pictures, royalty-free photos & images
dog sitting in a red armchair looking at camera - guard dog stock pictures, royalty-free photos & images
portrait of large grey dog sitting on wasteland - guard dog stock pictures, royalty-free photos & images
a snarling dog thrusting his head through a metal fence - guard dog stock pictures, royalty-free photos & images
beautiful doberman pinscher dog sitting on white background - guard dog stock pictures, royalty-free photos & images
sleek powerful black male doberman pinscher standing stacked, white background - guard dog stock pictures, royalty-free photos & images
doberman pinscher guard dog in snow; strong, proud, intelligent - guard dog stock pictures, royalty-free photos & images
usa, western colorado, guard dog sitting next to wooden fence - guard dog stock pictures, royalty-free photos & images
lgfinal,low section of man with trained guard dog standing on footpath,netherlands - guard dog stock pictures, royalty-free photos & images
two k-9 security professionals with a belgian malinois on patrol. - guard dog stock pictures, royalty-free photos & images
belgian sheperd malinois dog looking at camera with suspicious expression. - guard dog stock pictures, royalty-free photos & images
dog barking from half opened window of a green car - guard dog stock pictures, royalty-free photos & images
dobermann dog portrait with human suspicious expression - guard dog stock pictures, royalty-free photos & images
good dogs sitting; two noble dobermann pinschers in green grass - guard dog stock pictures, royalty-free photos & images
funny dog portrait at home looking at camera - guard dog stock pictures, royalty-free photos & images
boy (6-7) hugging black newfoundland outdoors - guard dog stock pictures, royalty-free photos & images
robotic dog with security camera helps police force with investigation - guard dog stock pictures, royalty-free photos & images
a female k-9 security professional with a belgian malinois on guard. - guard dog stock pictures, royalty-free photos & images