Weka Bird by Lake Kaniere conservation area, Hokitika, South Island,New Zealand

Starling by San Francisco bay, California, United States of America

Caged parrot in window, Patan, Nepal. Avian flu (Bird flu virus) might affect caged birds.

Male pheasant, The Cotswolds, Oxfordshire, United Kingdom

Female mute swan asleep on nest of moss and twigs, Donnington, Gloucestershire, The Cotswolds, England, United Kingdom

Greater Black-Backed Gull by San Francisco bay, California, United States of America

Kestrel perched on a fence, Cotswolds, Oxfordshire, England

Brolga, Queensland, Australia

Ducks in flooded meadow, Oxfordshire, The Cotswolds, United Kingdom

Great White Egret, Ardea alba, also known as the Great Egret or Common Egret on Anna Maria, Island, Florida, USA

Double-crested Cormorants in flight in the Gulf of Mexico by Anna Maria Island, Florida, USA

Free-range Norfolk bronze turkey at Sheepdrove Organic Farm , Lambourn, England

Greater Black-Backed Gull by San Francisco bay, California, United States of America

Greater Black-Backed Gull by San Francisco bay, California, United States of America

Common Babbler bird on fencepost at Chattra Sagar nature reserve at Nimaj, Rajasthan, Northern India

Great White Egret in glade, Florida Everglades, United States of America

Close-up portrait of two lappet-faced vultures (Torgos tracheliotos) standing on grass, Serengeti National Park, Tanzania, Africa

Close-up of a Lilac-breasted roller (Coracias caudatus) with catchlight and tucked wing feathers flies from bushes, Serengeti National Park, Tanzania, Africa

Close-up portrait of a lilac-breasted roller (Coracias caudatus) standing on a termite mound tosses insect on mound, Serengeti National Park, Tanzania, Africa

Close-up of a Lilac-breasted roller (Coracias caudatus) with catchlight flying over the savannah, Serengeti National Park, Tanzania, Africa

Short-Eared Owl, Alberta, Canada

Male Common Ostrich (Struthio Camelus) In Breeding Plumage, Ngorongoro Crater, Tanzania

Portrait of a male, common ostrich (Struthio camelus) lowering head and walking through the long grass at the Gabus Game Ranch; Otavi, Otjozondjupa, Namibia

Portrait of a southern yellow-billed hornbill (Tockus leucomelas) perching in profile on a bush. It has mottled black and brown feathers, a white head and a yellow beak, taken at the Gabus Game Ranch; Otavi, Otjozondjupa, Namibia

Portrait of a Cape Buffalo (Syncerus caffer) drinking from river carrying two cattle egrets (Bubulcus ibis) on its back in Chobe National Park, Chobe, Botswana

Portrait of a Cape Buffalo (Syncerus caffer) drinking from river carrying two cattle egrets (Bubulcus ibis) on its back in Chobe National Park, Chobe, Botswana

The Brahminy Kite (Haliastur indus), also known as a red backed sea eagle, are scavengers rather than hunters. They feed on carrion, insects, reptiles, amphibians, crustaceans and fish, Philippines