Great Cormorant perched posing on lake tree branch as geese swim past

waterfowl geese phalacrocorax birding birdwatching birds phalacrocoracidae cormorant wetland ornithology nest pond avian wildlife plumage perched seabird bird fishing nature feathers lake national park outstretched marsh habitat drying wings reserve wild animal park standing tree branch wild branch extended swim river england wing feather water spreading behaviour spread great posing limb britain