Great Black-backed Gulls with a comb in the beak, France

(liocarcinus puber) (macropipus puber) (portunus puber) 2 afrasia afro eurasia april atmosphere behavior behaviors bird birds charente maritime 17 competition (rivalry intra specific) competitions (rivalries intra specific) continent continental area count counting crab crabs crustacea sp crustacean crustaceans decapod decapoda sp decapods description descriptions duet duets ec eec enumeration enumerations eu eurafrasia eurasia europe european economic community european union flap wings flapping wings flaps wings flight flights flutter fly (to) flying france great black backed gull (larus marinus) great black backed gulls (larus marinus) gull gull (larus sp) gulls image and subject in flight interaction between species isle of ré isle of rhé iucn iucn red list of threatened species iucn status landmass landmasses least concern (iucn) lc least concern species localisation localization location low risk (iucn) lr meteorological phenomena meteorological phenomenon month of year months of year motion motions old world pair pairs poitou charentes predation predations predator predators predatory prey preys ré (isle of) ré island recording recordings relation between species rhé island sea bird sea birds seasons shoting shotings skies sky species spring swimmer crab swimmer crabs swimming crab swimming crabs temperate season temperate seasons three quarter length three quarter shot three quarter shots three quarter sight three quarter sights three quarter view three quarter views time scale time scales two two animals ue uicn velvet swimming crab (necora puber) velvet swimming crabs (necora puber) wild animal wild animals wild fauna wild faunae