A large triangular bone as the base of the spine. Resides inbetween the two hip bones.

Bird Sacrum

A large triangular bone as the base of the spine. Resides inbetween the two hip bones.

A small passerine bird.

Indian Creeper

A small passerine bird.

A wader bird native to warm and hot climates. Commonly 15 to 18 inches tall and has a chestnut color on its head.

Avocet

A wader bird native to warm and hot climates. Commonly 15 to 18 inches tall and has a chestnut color…

Also called the Sand Martin. A migratory passerine bird.

Bank Swallow

Also called the Sand Martin. A migratory passerine bird.

Diagram of the lungs and air sacs of a pigeon. <em>p</em>, air sacs; <em>lu</em>, lung; <em>t</em>, traches.

Pigeon Lungs

Diagram of the lungs and air sacs of a pigeon. p, air sacs; lu, lung; t,…

An old world bird that is distinguished by it's vibrant plumage and downward-curving bill, and bright crest.

Hoopoe

An old world bird that is distinguished by it's vibrant plumage and downward-curving bill, and bright…

A bird with long legs

Bird

A bird with long legs

This painting, by Francesco Raibolini, is a good example of the way he reflects the influences of Pergino and Raphael. This painting can now be found in the Dresden Gallery.

Madonna and Child with a Bird

This painting, by Francesco Raibolini, is a good example of the way he reflects the influences of Pergino…

A small seagull standing on a piece of wood.

Seagull

A small seagull standing on a piece of wood.

A bird not capable of flight that lives in freezing temperatures.

Penguin

A bird not capable of flight that lives in freezing temperatures.

An endangered South American bird with vibrant red and green plumage. It is thought to be extinct.

Quezal

An endangered South American bird with vibrant red and green plumage. It is thought to be extinct.

A humming-bird on a perch.

Hummingbird

A humming-bird on a perch.

A flightless bird of New Zealand

Apteryx

A flightless bird of New Zealand

Schistocerca Americana, a grasshopper.

American Bird Grasshopper

Schistocerca Americana, a grasshopper.

A spring with a bird in front of it.

Spring

A spring with a bird in front of it.

The claws of a bird.

Claw

The claws of a bird.

A well known English bird, known as the coal-hood, the hoop, or the tony hoop, the alp, and the hope.

Bull Finch

A well known English bird, known as the coal-hood, the hoop, or the tony hoop, the alp, and the hope.

A large bird.

Buzzard

A large bird.

"The scaup (<em>Fuliguia mariula</em>) is a winter visitor to the United States and Southern Europe. Its food consists of marine animals and plants."&mdash;Finley, 1917

Scaup Duck

"The scaup (Fuliguia mariula) is a winter visitor to the United States and Southern Europe.…

A sceptre from the seal of Edward the Confessor.

Sceptre of Edward the Confessor

A sceptre from the seal of Edward the Confessor.

9. Cormorant, 10. Guillemot, 11. Puffin, 12. Sanderling, 13. Herring Gull, 14. Tern.

Types of Seashore Life

9. Cormorant, 10. Guillemot, 11. Puffin, 12. Sanderling, 13. Herring Gull, 14. Tern.

"The great shearwater reaches a length of eighteen inches, is white beneath, and is generally distributed throughout the Atlantic Ocean."&mdash;Finley, 1917

Great Shearwater

"The great shearwater reaches a length of eighteen inches, is white beneath, and is generally distributed…

"The sheldrake, also known as the bargander or burrow-duck, is a member of the duck family, which is resident throughout the year in Canada, and is abundant in the east of Scotland."&mdash;Finley, 1917

Sheldrake Duck

"The sheldrake, also known as the bargander or burrow-duck, is a member of the duck family, which is…

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 68

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 84

Geometric pattern for translation and rotation exercises.

The stomach of a grain-eating bird, which has a gizzard that functions to crush the seeds to pieces since birds have no teeth to crush their food. It has on its inside two hard surfaces which rub and press against each other by muscles to grind food. At <em>b</em> is the gizzard cut open, showing two hard grinding surfaces, and at <em> a </em> above is the part from which oozes the gastric juice.

Stomach of a Bird

The stomach of a grain-eating bird, which has a gizzard that functions to crush the seeds to pieces…

Bird's eye view of the valves of the heart.

Valves of the Heart

Bird's eye view of the valves of the heart.

A bird perched on a branch of a tree below her nest.

Tree

A bird perched on a branch of a tree below her nest.

North American wading bird.

Spoonbill

North American wading bird.

"A song bird native to India, Malaysia and the Philippines, so named from its curious habit of sewing leaves together to form a nest." -Foster, 1921

Tailorbird

"A song bird native to India, Malaysia and the Philippines, so named from its curious habit of sewing…

South American bird related to the partridge.

Guan

South American bird related to the partridge.

The kingfisher bird.

Kingfisher

The kingfisher bird.

The nest of a sociable weaver bird.

Weaver Bird's Nest

The nest of a sociable weaver bird.

A species of bird native to the coasts of the Mediterranean Sea.

Ortolan

A species of bird native to the coasts of the Mediterranean Sea.

The ostrich is the largest bird and native to Africa and Asia.

Ostrich

The ostrich is the largest bird and native to Africa and Asia.

A bird with a large pouch on the underside of its beak with which it carries fish.

Pelican

A bird with a large pouch on the underside of its beak with which it carries fish.

The passenger pigeon was very abundant in North America but eventually became extinct because of hunting.

Passenger Pigeon

The passenger pigeon was very abundant in North America but eventually became extinct because of hunting.

The pipit or titlark is a small American bird that often flicks its tail.

Pipit

The pipit or titlark is a small American bird that often flicks its tail.

A small game bird found mostly in America.

Quail

A small game bird found mostly in America.

"Group of birds related to the coots and gallinules." -Foster, 1921

Rail

"Group of birds related to the coots and gallinules." -Foster, 1921

A stone pipe bowl depicting a large bird made by Native Americans.

Stone pipe-bowl

A stone pipe bowl depicting a large bird made by Native Americans.

The Hesperornis regalis was an ancient bird of the Cretaceous Period.

Hesperornis Regalis

The Hesperornis regalis was an ancient bird of the Cretaceous Period.

The lower jaw of the Hesperornis regalis, an ancient bird of the Cretaceous Period.

Hesperornis Lower Jaw

The lower jaw of the Hesperornis regalis, an ancient bird of the Cretaceous Period.

A tooth of the Hesperornis regalis, an ancient bird of the Cretaceous Period.

Hesperornis Tooth

A tooth of the Hesperornis regalis, an ancient bird of the Cretaceous Period.

A vertebrae of the Hesperornis regalis, an ancient bird of the Cretaceous Period.

Hesperornis Vertebrae

A vertebrae of the Hesperornis regalis, an ancient bird of the Cretaceous Period.

A vertebrae of the Hesperornis regalis, an ancient bird of the Cretaceous Period.

Hesperornis Vertebrae

A vertebrae of the Hesperornis regalis, an ancient bird of the Cretaceous Period.

The pelvis of the Hesperornis regalis, an ancient bird of the Cretaceous Period.

Hesperornis Pelvis

The pelvis of the Hesperornis regalis, an ancient bird of the Cretaceous Period.

The dodo and the solitaire: two extinct birds of the modern time.

Extinct Birds

The dodo and the solitaire: two extinct birds of the modern time.

The Coat of Arms of Guatemala.

Guatemalan Coat of Arms

The Coat of Arms of Guatemala.

The ichthyornis an ancient bird of the Cretaceous Period.

Ichthyornis

The ichthyornis an ancient bird of the Cretaceous Period.

Hands forming a nest for a bird.

Hand Nest

Hands forming a nest for a bird.

A mother and her daughter outside watching a bird sing.

Mother and Daughter

A mother and her daughter outside watching a bird sing.

A kitten watching a robin.

Kitten

A kitten watching a robin.

A cat looking up at a robin.

Cat Looking at Bird

A cat looking up at a robin.

A woman outside feeding geese.

Woman and Geese

A woman outside feeding geese.

"Parts of a Feather. a, quill; b, shaft; c, vane; d, down." -Cooper, 1887

Feather Parts

"Parts of a Feather. a, quill; b, shaft; c, vane; d, down." -Cooper, 1887

The flamingo is a large pink sea bird.

Flamingoes

The flamingo is a large pink sea bird.

The starling, or Sturnus vulgaris.

Starling

The starling, or Sturnus vulgaris.