What substance makes up a bird's bill?

What is the outermost shell of an egg made of?

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

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

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

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

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

What is the fastest bird?

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

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

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

How are the toes of a climbing foot arranged?

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

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

What is the largest living bird?

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

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

How many shell membranes does a bird egg have?

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

What organ produces oil that birds spread over their feathers?

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

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

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

most members do not have a keel

includes many edible birds that are or have been hunted

includes pelicans and grebes

includes eagles and hawks

includes chickens and quail

includes ostriches and emus

includes macaws and parakeets

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

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

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

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

A bird "bathing" himself in the dirt is called _____________.

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

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

A bird's most important flight muscles are the _______________.

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

The largest flying bird is the ___________________.

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

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

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

Birds have a _______-chambered heart.

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

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

The smallest of all birds is the ____________________.

What type of feet do hunting birds like hawks need to capture their prey?

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?

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?