Question

The Mute Swan is a species of bird with an orange-reddish bill and white feathers. It is naturally found in Europe and Asia but can sometimes be found in the United States as a result of the importation of these non-native birds.
Mute Swans are one of the heaviest flying birds and consume up to 8 pounds of vegetation each day. How will the migration of Mute Swans into an area most likely affect the birds native to that area?
A) The native birds and the Mute Swans will coexist peacefully together.
B) The native birds will immediately migrate to another area.
C) The native birds will decrease in number because there is not enough food for all the birds.
D) The native birds will adapt to consume less food or different types of food.

Answer 1

C
The decrease in native birds will be due to the increased competition for food. They may adapt to different foods; however, the initial and most prominent effect will be that of the native birds' population declines.