light Red fox, Vulpes vulpes, standing in the grass in the night, Biebrza national park. Red fox, Vulpes vulpes, standing in the grass in the night, Biebrza national park. Red fox, Vulpes vulpes, standing in the grass in the night, Biebrza national park. Biebrza National Park during sunset, Poland Biebrza National Park during sunset, Poland Biebrza National Park during sunset, Poland Biebrza National Park during sunset, Poland Biebrza National Park during sunset, Poland