Bird Migration

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1. What triggers birds to start fall migration?

d. All of the above

58.1%

e. A and C

31.1%

a. Decreasing number of hours of light

7.6%

c. Changes in food sources, especially insects

2.3%

b. Cooler temperatures

0.8%

2. Which species is NOT a medium-distance migrant (i.e., a species that typically stays within North America)?

a. turkey vulture

30.8%

b. eastern bluebird

19.4%

c. killdeer

19.2%

d. white-crowned sparrow

30.6%

3. Which bird is NOT a diurnal, or daytime, migrant?

b. swifts

28.6%

a. hummingbirds

24.9%

d. birds of prey

18.5%

c. cuckoos

17.1%

e. pelicans

10.9%

4. Which bird is NOT a nocturnal migrant, taking off within an hour of sunset and flying through the night?

c. hummingbirds

57.6%

a. cuckoos

18.0%

e. warblers

10.7%

b. flycatchers

7.8%

d. thrushes

5.8%

5. How fast do migrating ducks fly?

a. 10-20 mph

13.8%

b. 20-30 mph

59.4%

c. 40-50 mph

26.8%

6. For what reason do some birds travel at extreme altitudes?

a. Conserve energy

55.9%

b. To avoid overheating

15.6%

c. To avoid predation

28.5%

7. How do migrating birds know where to go?

e. All of the above

67.8%

f. A, B and D

20.7%

d. Earth magnetism

7.1%

c. Landforms

1.9%

b. Wind patterns

1.7%

a. Stars

0.9%

8. What is hyperphagia?

a. A drop in hormone levels that stimulates weight gain and fat storage.

78.1%

b. A location that concentrates migrating birds.

7.0%

c. An unpredictable variation in numbers as a result of a good breeding season and food source failure.

14.9%

9. What body form is most typical of migratory birds?

a. Longer, rounder wings

30.5%

b. Shorter, rounder wings

15.0%

c. Longer, more pointed wings

54.5%

10. What bird has the longest recorded migration?

a. whooping crane

11.3%

b. Arctic tern

75.1%

c. blackpoll warbler

13.6%

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