Lesson 18

Question 1

Describe the extinction of the Great Auk.

Answer 1

These birds were hunted by sailors for their meat and feathers and then their island was submerged into the ocean after a volcanic eruption. Their numbers dwindled until the last Great Auk egg was stepped on.

Question 2

What three events in 1916 brought the numbers of the last living Heath Hens down to 150?

Answer 2

There was a fire, a harsh winter, and an invasion of Northern Goshawks that brought the number of Heath Hens down to 150.

Question 3

In what ways have humans endangered the lives fo bird species?

Answer 3

Humans have endangered the lives of birds by cutting down forests and introducing new species to the wild.

Question 4

What is the common name for this bird?

Answer 4

Blue Jay

Question 5

Name the bird that sings this song

Answer 5

Blue Jay

Question 6

What is the common name for this bird?

Answer 6

Tree Swallow

Question 7

Name the bird that sings this song

Answer 7

Tree Swallow