1. Chapter 2 – Proximate and Ultimate Causes of Bird Song
Biology 484 – Ethology
Chapter 2 – Proximate and Ultimate Causes of Bird Song

2. Chapter 2 Studies of bird song have relied heavily on male white-crowned sparrows
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3. 2.1 Song dialects in white-crowned sparrows from Marin, Berkeley, and Sunset Beach, California
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4. 2.2 Hearing is critically important for song learning in the zebra finch
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5. 2.3 Song learning hypothesis based on laboratory experiments with white-crowned sparrows
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6. 2.6 Sonograms of contact calls of galahs and pink cockatoos reared under different conditions
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7. 2.7 Changes in the song system of young male and female zebra finches
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8. 2.8 The timing of gene activity in different components of the avian song control system in males
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9. 2.9 Gene expression in a component of the zebra finch song system
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10. 2.11 The song system of a typical songbird
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11. 2.12 Differences in the size of one nucleus of the song system
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12. 2.13 Single cells and song learning in the swamp sparrow
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13. 2.15 The song of a vocal non-learner, the eastern phoebe
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14. 2.16 The song control systems of parrots, hummingbirds, and oscine songbirds (Part 1)
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15. 2.16 The song control systems of parrots, hummingbirds, and oscine songbirds (Part 2)
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16. 2.17 Does bird song repel territorial intruders?
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17. 2.18 White-crowned sparrow females are attracted to the songs of male white-crowned sparrows
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18. 2.19 Songs match habitats
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19. 2.20 Dialect selection by male white-crowned sparrows (Part 1)
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20. 2.20 Dialect selection by male white-crowned sparrows (Part 2)
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21. 2.22 Song matching and communication of aggressive intent in the song sparrow
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22. 2.23 Evidence that male Cassin’s finches direct their songs at females
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25. 2.24 Nutritional stress early in life has large effects
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26. 2.25 Mean number of precopulatory displays given by female song sparrows (Part 1)
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27. 2.25 Mean number of precopulatory displays given by female song sparrows (Part 2)
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