A triangle shape in Pyr�n�es-Atlantiques, France

On September 19, 2015, a witness looking at the stars, particularly the Little Dipper, is surprised to notice the straight-line movement of 3 fixed gray luminous spots forming an isosceles triangle in the sky. No trail, no halo, no noise are noticed during the joint passage of the three spots. These gradually go out over one second. The observation lasted 8 seconds in total. Immediately after this observation, the witness follows the passage of an airplane crossing the trajectory of the UAP. No other testimony will be collected. The witness cannot give the exact time of the observation but nevertheless gives an indication (a rugby try by the French against the Italians): the investigator was able to determine the observation time, which is 10:31 PM (see the investigation report). Aeronautical hypotheses (airplane passage), aerospace hypotheses (satellites or rocket launch) could therefore be studied. Of average strangeness, but of sufficient consistency, this case could be a possible misidentification with a flight of birds lit by a light source on the ground. The non-point-like aspect of the luminous spots making up the UAP as well as its rapid angular speed are compatible with this hypothesis. Moreover, there are two sources that could potentially light birds from below in the direction indicated by the witness. This case is classified B, possible misidentification with a flight of birds lit by a nighttime light source.