FEEDING HABITS 
Each group of birds have their own feeding habits,Some eat seeds,Others eat meat and fish,Others are scavengers
A bit like human beings,Although we have been studying Birds for many years and mostly they are better 
behaved than most humans,
The first group includes,Birds that live mainly in & on the water (grebes,divers,gannets,cormorants,herons,wildfowl
swans,geese,ducks)They all have different diets which includes,fish,molluscs,crustaceans,grass,plankton & aquatic vegetation
The second group are Birds Of Prey,They usually hunt and kill their food (kites,hawks,buzzards,eagles,vultures,harriers,falcons)
Their diets differ but includes,mice,rats,moles,frogs,slow worms,birds, small mammals,squirrels,rabbits & road kill,
The third group are Birds that live on the shore or in the marshes (bustards,crakes,rails,cranes,waders,skuas,gulls,terns,
auks,sandgrouse,etc)Their diets includes,worms,insects,spiders,snails,crustations,frogs,fish,invertebrates & carrion,
The fourth group includes tree perching birds (pigeons,doves,cuckoos,kingfishers,woodpeckers,swallows,swifts,pipits,wagtails,
warblers,flycatchers,thrushes,tits,wrens,buntings, finches,sparrows & crows)Their diets includes,buds,berries,seeds,insects,scraps,