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A tropical bird on a rocky surface and holding a small tree branch with the beak

Blue Whistling Thrush Sitting on rock in Forest

In Eastern Utah Black Raven in Utah Desert Photo Series (Shot with Canon 5DS 50.6mp photos professionally retouched - Lightroom / Photoshop - original size 5792 x 8688 downsampled as needed for clarity and select focus used for dramatic effect)

Northern bald ibis is a migrating bird of africa/asia

Australian raven Crow is a passerine corvid bird, its body are glossy, with a purple-blue, greenish sheen on the big stone at a botanical garden.

Magpie sit on tree at front of collapsed mountain at Hebei province in China.

silhouette of a sparrow sitting on a rock

Black Cockatoo perched in a tree. Australian Wildlife.

Phalacrocorax carbo - Great cormorant, a species of suliform bird in the family Phalacrocoracidae.

A black bird at Bryce Canyon National Park in summer season, Utah.

Baby Mynas bird just flying practice on tree in the garden of Thailand

close up of a common myna, indian myna bird seen in a garden in sri lanka

Darwins finch on Santa Cruz Island, Galapagos Islands, Ecuador, South America

$Birds are a diverse group of warm-blooded vertebrates constituting the class Ave's, characterized by feathers, beaked jaws, and generally, the ability to fly. They are found worldwide and range in size from tiny hummingbirds to large ostriches. Here are some key characteristics and features of birds:\n Feathers:\n Feathers are a defining characteristic of birds. They serve multiple functions, including insulation, protection, and aiding in flight.\n Feathers are made of a protein called keratin and are arranged in a precise pattern on the bird's body.\n Beaks and Bills:\n Birds have beaks or bills instead of teeth. The shape and size of the beak are adapted to the bird's diet and feeding habits.\n Beaks can be adapted for various functions, such as probing for insects, grasping seeds, or tearing flesh.\n Skeleton and Bones:\n Birds have a lightweight skeleton, which is adapted for flight. Many of their bones are hollow, and they have a unique respiratory system that allows for efficient oxygen intake during flight.\n Endotherm (Warm-Blooded):\n Birds are warm-blooded, meaning they can regulate their body temperature internally. This enables them to be active in a wide range of environmental conditions.$

Red Winged Starling (Onychognathus Morio of the Sturnidae family) perched on a rock high up with mountains in the background.

Great black cormorant standing on a rock

A black bird perched atop a rock formation surrounded by lush green grass

Close-Up Of Tree Sparrow (Passer Montanus) On The Rock

A lone wagtail stands on a rock in the middle of a river

Darwin's finch with small brown orange beak standing on a rock in a beach in San Cristóbal Island (Galapagos Islands, Ecuador)

Espanola cactus finch (Geospiza conirostris), is a species of bird in the tanager family Thraupidae. It is one of Darwin's finches, and is endemic to the Galápagos islands, where it is restricted to Española. Large Cactus finch, Punta Suarez; Hood Island; Espanola Island; Galapagos Islands; Galapagos Islands National Park; Ecuador

Sturnus vulgaris, common starling, Scotland, Moray

Magpies of the genus Pica are generally found in temperate regions of Europe, Asia, and western North America, with populations also present in Tibet and high-elevation areas of Kashmir. Magpies of the genus Cyanopica are found in East Asia and the Iberian Peninsula. The birds called magpies in Australia are, however, not related to the magpies in the rest of the world.

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