Question 1

Which of the following best describes the 'Adaptive Function' pillar in Tinbergen’s four levels of analysis for animal behavior?

Accepted Answer

It evaluates the adaptive value of a behavioral trait as affected by the process of evolution by natural selection.

Question 2

A researcher isolates young white-crowned sparrows and exposes them only to tape recordings of song sparrow songs. What is the most likely outcome for the song development of these birds?

Accepted Answer

They will fail to develop species-typical song and sing abnormal songs.

Question 3

Which hypothesis predicts that young male birds learn the dialect of their region because they are exposed to local adult songs?

Accepted Answer

Stimulus hypothesis

Question 4

In the study of bird song learning, what is the significance of the 'critical period'?

Accepted Answer

It is the developmental window when birds must hear a tutor to learn their species-typical song.

Question 5

Which part of the avian brain is primarily involved in song learning rather than song production?

Accepted Answer

LMAN (lateral magnocellular nucleus of the anterior nidopallium)

Question 6

If a young zebra finch has a lesion in area X of its brain, what is the expected effect on its song development?

Accepted Answer

It will develop abnormal or disrupted song patterns.

Question 7

Which equation correctly represents the relationship between sound frequency ($$f$$), wavelength ($$\lambda$$), and the speed of sound ($$v) in $$air?

Accepted Answer

$$v = f 	imes \lambda$$

Question 8

A spectrogram displays sound frequencies over time. If a bird’s song shows higher frequency components in a spectrogram, what does this indicate about the song?

Accepted Answer

The song has a higher pitch.

Question 9

Which hypothesis suggests that vocal learning in birds evolved to allow signals to be more recognizable among kin, favoring greater information sharing in cooperative breeding systems?

Accepted Answer

Sharing hypothesis

Question 10

In a population of sedge wrens, which scenario would most likely favor the evolution of song matching behavior?

Accepted Answer

Populations that remain in stable territories

Question 11

Which of the following is a real-world application of the 'environmental adaptation hypothesis' for bird song learning?

Accepted Answer

Birds in open woodlands develop songs with frequencies that travel best in that environment.

Question 12

A female bird is given a choice between a male with a long song and a male with a short song. According to studies on ZENK gene expression, what is the most likely outcome?

Accepted Answer

She will prefer the male with the long song.

Question 13

Which of the following best explains why song learning in birds is considered an example of 'descent with modification'?

Accepted Answer

Birds modify inherited song patterns based on environmental and social influences.

Question 14

Which scenario best illustrates the 'matching hypothesis' in territorial song sparrows?

Accepted Answer

A neighbor sings a song type shared with the subject, and the subject responds with the same song type.

Question 15

Which of the following is a plausible consequence of deafening a young bird before it develops its song?

Accepted Answer

The bird will fail to develop a species-typical song.

Question 16

Which formula would you use to calculate the amplitude ($$A) of a $$sound wave given its maximum displacement from equilibrium?

Accepted Answer

$$A = |x_{max}|$$

Question 17

If a population of birds is exposed to both local and nonlocal dialects during the critical period, which dialect are they most likely to develop?

Accepted Answer

They will develop the local dialect.

Question 18

Which of the following is NOT a function proposed for vocal learning in birds?

Accepted Answer

Enabling birds to fly longer distances

Question 19

A male bird exposed to male sex hormones during early development shows an increase in the size of which brain nucleus?

Accepted Answer

RA (robust nucleus of the arcopallium)

Question 20

Which of the following best describes the role of the ZENK gene in songbirds?

Accepted Answer

It is expressed in the brain when birds hear or produce their own species’ song.

The Integrative Study of Animal Behavior: Song Learning in Birds

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