Bitterns tend to be shorter necked and more wary. Members of Ardeidae fly with their necks retracted, unlike other long-necked birds such as storks, ibises and spoonbills. Order: PelecaniformesFamily: Threskiornithidae  Threskiornithidae is a family of large terrestrial and wading birds which includes the ibises and spoonbills. They have long, broad wings with 11 primary and about 20 secondary feathers. They are strong fliers and despite their size and weight, very capable soarers. Order: AccipitriformesFamily: Pandionidae  The family Pandionidae contains only one species, the osprey. The osprey is a medium-large raptor which is a specialist fish-eater with a worldwide distribution. Order: AccipitriformesFamily: Accipitridae  Accipitridae is a family of birds of prey, which includes hawks, eagles, kites, harriers and Old World vultures. These birds have powerful hooked beaks for tearing flesh from their prey, strong legs, powerful talons and keen eyesight. Order: StrigiformesFamily: Tytonidae  Barn owls are medium to large owls with large heads and characteristic heart-shaped faces. They have long strong legs with powerful talons. 1 species occurs in Russia. Order: StrigiformesFamily: Strigidae  The typical owls are small to large solitary nocturnal birds of prey. They have large forward-facing eyes and ears, a hawk-like beak and a conspicuous circle of feathers around each eye called a facial disk. Order: BucerotiformesFamily: Upupidae  Hoopoes have black, white and orangey-pink colouring with a large erectile crest on their head. 1 species occurs in Russia. Order: CoraciiformesFamily: Alcedinidae  Kingfishers are medium-sized birds with large heads, long, pointed bills, short legs and stubby tails. There are 5 species which occur in Russia. Order: CoraciiformesFamily: Meropidae  The bee-eaters are a group of near passerine birds in the family Meropidae. Most species are found in Africa but others occur in southern Europe, Madagascar, Australia and New Guinea. They are characterised by richly coloured plumage, slender bodies and usually elongated central tail feathers.