ABEKA 7th Grade Science Test 7

Keratin

What substance makes up a bird's bill?

Calcium Carbonate

What is the outermost shell of an egg made of?

Gaping

What type of bill has hinged jaws that allow the bill to be opened widely?

Bowerbird

What bird is known for building a huge "nest" and decorating it with shiny objects as part of its mating rituals?

Gliding

Which type of flight allows birds to coast "downhill"?

Perching

What type of foot has three forward toes and one hind toe?

Megapodes

Which group of birds does not provide any parental care for their young after hatching?

Peregrine falcon

What is the fastest bird?

Nuthatch

What type of bird is known for climbing down a tree trunk head first?

yolk

What is the nutrient-rich fluid that feeds an unhatched chick?

Germinal spot

What is the region of an egg where the embryo develops?

Two forward, two backward

How are the toes of a climbing foot arranged?

Incubation

What is the act of keeping eggs warm for proper chick development called?

Field marks

What are the colors, patterns, and markings that are characteristic of a particular bird species?

Ostrich

What is the largest living bird?

Hovering

Hummingbirds are able to remain stationary in the air. What type of flight is this?

Alula

What retractable group of feathers is supported by a bird's "thumb" bone?

Two

How many shell membranes does a bird egg have?

Flyways

What are migration routes that birds follow year after year called?

Keratin

Of what substance are the shell membranes of a bird egg made?

Preen gland

What organ produces oil that birds spread over their feathers?

Keel

What structure on a bird's sternum provides an attachment for the flight muscles?

Mobbing

A flock of smaller birds is harassing a larger bird. What is this behavior called?

Gizzard

What special section of a bird's stomach grinds food to make it more easily absorbed?

Flightless birds

Most members do not have a keel

Game birds

Includes many edible birds that are or have been hunted.

Water birds

Includes pelicans and grebes

Birds of prey

Includes eagles and hawks

Game birds

Includes chickens and quail

Flightless birds

Includes ostriches and emus

Tropical birds

Includes macaws and parakeets

Contour

The strong feathers found on a bird's body, wings, and tail are ________ feathers.

Monocular

Most birds are able to detect danger from all sides because they are designed with _______ vision.

Instinct

Birds are able to know what kind of nest to build because of a built-in knowledge called __________.

Altitudinal

Some birds migrate by moving short distances up or down a mountain. This is _________ migration.

Dusting

A bird "bathing" himself in the dirt is called _________?

Feathers

You are researching birds and find an article titled "True Colors: Decoding Bird Plumage." Plumage is referring to the birds'

Crop

The food-storage sac in a bird's esophagus is the _____.

Pectorals

A bird's most important flight muscles are the _______?

Syrinx

The organ that allows birds to produce sound without vocal cords is the ________.

Andean colndor

The largest flying bird is the ____________.

Probing

Birds such as sandpipers and whimbrels have long slender _________ bills for retrieving crustaceans burrowed in the sand.

Molt

Birds _______ to replace their old, broken feathers with new ones.

Precocial

A bird that is born with down feathers and is able to run shortly after birth is said to be ________.

Four

Birds have a _______-chambered heart.

Chalazae

The yolk body is held in place by two dense, twisted cords called _________.

Down

The soft, fluffy feathers found nearest a bird's body are ________ feathers.

Bee Hummingbird

The smallest of all birds is the ____________.

Songbirds

The most likely to be preferred food of a bird with binocular vision?

The parent must transfer body heat to the eggs

This best explains why birds lose the feathers on their brood patch...

Grasping feet

The type of feet that hunting birds like hawks need to capture their prey?

Swimming feet

As you are walking through the park, a bird crosses your path. You notice that its feet have four toes each. Three point forward and are connected by webbing, and the fourth points straight back. What type of feet does this bird have?

Soaring

A sailplane is a type of airplane that does not have an engine. Sailplanes can be flown cross-country by circling inside a thermal to gain altitude and then gliding to another thermal. Which type of bird flight does this technique resemble?

Altricial

The chicks of the American robin hatch without feathers and have their eyes closed for the first several days. What type of chicks does the American robin have?

Instead of using a diaphragm to bring air into the lungs, birds use their chest muscles to expand and contract the thoracic cavity. This causes the bird to breathe more vigorously during flight.

A bird's lungs have air capillaries that allow air to flow straight through, unlike mammalian lungs, which have dead-end alveoli. Air travels through the lungs rather than in and out of them. This gives the avian lung a steadier oxygen supply and allows higher oxygen-transfer rates.

Mammals inhale and exhale once for each breath; however, birds inhale and exhale twice to move each breath through the respiratory system. This allows the bird to extract the maximum amount of oxygen from each breath.

Birds are designed with air sacs that store that store air during the cycle of breathing and air tubes that extend into the bones; mammals do not have these sacs and tubes. These air sacs and tubes allow bird's unique breathing patters and help cool the body by absorbing heat.

Four main differences between the avian and mammalian respiratory systems?