Author 'Boucher Marc dit de Meilh' (Id 145017 ) : On the lake Bourget this bird. The gull in flight. For information about 'The Black-headed Gull (Chroicocephalus ridibundus) is a species of bird in the family Laridae, a family gathering including gulls. 'The Black-headed Gull is sociable, somewhat fearful, some people told me that she had food in their hands sometimes ... It frequents marshes and reedbeds. It can fly up to 120 kilometers per hour. Marc Boucher said Meilhan.