Carolina Wren Song

Males have 17-55 songs, average 32 (Morton 1987)
tea-kettle, tea-kettle, tea-kettle
che-wortel, che-wortel, che-wortel
rattle (females)
Songs sung by males classified into 4 types (Borror 1956)

Song class 1

pitch falling at beginning, rising later

Video: https://www.youtube.com/watch?v=wrTFkjWSNEc&t=57s

Song class 2

http://macaulaylibrary.org/audio/84703?__hstc=75100365.403f0feb4a3f03b3994cedfae051e4dc.1514226099546.1514572457652.1514596299458.5&__hssc=75100365.4.1514596299458&__hsfp=328873419#_ga=2.7167154.1078527830.1514572455-134736981.1514226094

Song class 3

Pitch rises and then falls

041517 Pilot Access

Video: https://www.youtube.com/watch?v=Y49Fh10_YmQ
Video: https://www.youtube.com/watch?v=Blm_OVGs0js

Song class 4

Down-slurred note followed by up-slurred note of similar pitch

Video: https://www.youtube.com/watch?v=msEblPBENeQ

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Rattle (by female)

Chattering rattle used only by females
Used in duets with singing males

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More recordings

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References:
Borror, D.J 1956. Variation in Carolina Wren songs. Auk no. 73:211-229

Haggerty, T. M. and E. S. Morton (2020). Carolina Wren (Thryothorus ludovicianus), version 1.0. In Birds of the World (A. F. Poole, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.carwre.01

Morton, E.S. (1987). The effects of distance and isolation on song-type sharing in the Carolina Wren. Wilson Bull.. 99(4): 601-610.