02264nas a2200217   4500008004100000022001300041245010200054210006900156260001600225300001200241490000800253520158100261653002201842653001801864653002401882653001301906653001601919100002201935700002301957856006601980       2017                        eng d  a0003347200aIntroductory whistle is sufficient for early song recognition by golden-crowned sparrow nestlings0 aIntroductory whistle is sufficient for early song recognition by  cJan-11-2017  a83 - 880 v1333 a<p>Many songbird species have a predisposition to learn conspecific songs, suggesting song learning may be guided by an innate auditory template. Evidence for such a template includes preferential response to conspecific song in early life, even before song learning begins. A prime example of an innate cue for selective song learning is the introductory whistle of white-crowned sparrows, Zonotrichia leucophrys. The songs of its sister species, the golden-crowned sparrow, Zonotrichia atricapilla, also contain an introductory whistle, which differs in structure from that of white-crowned sparrows. Here we tested the ability of nestling golden-crowned sparrows in a sympatric population to discriminate between conspecific and heterospecific songs based on introductory whistles alone, prior to the onset of song learning. Golden-crowned sparrow nestlings responded with more chirps to playbacks of conspecific whistles than to heterospecific (white-crowned sparrow) whistles, and they responded similarly to full conspecific songs and conspecific whistles alone. We suggest that the introductory whistle alone is sufficient for song recognition in the golden-crowned sparrow. We discuss similarities and differences in the role of the introductory whistle between these sister taxa, and how this divergent song phrase may share a role in species recognition in both sister species. Identifying the cues underlying song recognition prior to song learning could be key to understanding the evolution of behavioural isolation between closely related songbird species.</p>
10aacoustic template10asong learning10aspecies recognition10awhistles10aZonotrichia1 aHudson, Emily, J.1 aShizuka, Daizaburo  uhttp://linkinghub.elsevier.com/retrieve/pii/S0003347217303056