It can be confused with UFO squadron that often do unscrupulous submitters of UFO news.
Clearly visible only through night vision devices, as normal human eye does not catch the IR spectrum, which they often emit light.
4 videos of real UFOs in one night
Dogs bark at the span of two large UFO, the people were not there, the dogs sensed that something was wrong. Since UFO scanned the terrain, harmful to living organisms radiation.
There was a bright yellow glow in the form of spheres. The intensity of the glow was is more brightness of Venus. A few seconds later the lights began to fade and gradually went out, going to the invisible infrared range.