Ruby-crowned kinglet
Chapter 6: Song Learning Often Creates Complex Songs and Large Repertoires
Subchapter: Small to large repertoires
From page 86 in the book.
Photo by Wil Hershberger
♫386. Each male may have only one song, but it's a masterpiece when complete: Tseee tseee tseee tsee tsee tse tse tew tew tew tew tew tew te te te tee-LETT tee-LETT tee-LETT tee-LETT tee-LETT. June 15, 2008. St. Elmo, Colorado. (4:21)
♫387. Partial songs and call notes convey a different mood, but what exactly is this mood? June 23, 2012. Westmanland, Maine. (2:56)