71. Song changes over evolutionary time.
8. How Songs Change over Space and Time
Song changes over evolutionary time
From page 152 in the book.
Song changes over evolutionary time. The examples in the book focus on just a few species, but throughout this book are many other examples of closely related species that could be compared. See "Who's Who" on p. 170, for example, and look for close relatives in the same genus. Here are a few additional comparisons that I find intriguing:
Eastern whip-poor-will, Mexican whip-poor-will in the genus Antrostomus (p. 171)
The sapsuckers in the genus Sphyrapicus (p. 173)
Eastern phoebe, Say's phoebe, black phoebe in the genus Sayornis (p.174)
Vireos in the genus Vireo (p. 174)
Chickadees in the genus Poecile (p. 175)
Sedge wren, marsh wren in the genus Cistothorus (p. 175)
Thrushes in the genus Catharus (p. 176)
Thrashers in the genus Toxostoma (p. 176)
Sparrows in the genera Spizella and Zonotrichia (p. 177)
Warblers in the genera Geothlypis and Setophaga (p. 178)
Buntings in the genus Passerina (p. 178)