Program Information — Series 1 & 2
Click on a program in the right-hand column to see a description and program notes.

Internal Duets - Thrushes

The Swainson's thrush sings lovely harmonies using the two branches of its syrinx simultaneously. The varied thrush sounds like whistling and humming at the same time.

Chris Tenney recorded one of the Swainson's thrush songs near Carmel River, the hermit thrush in the northern Sierra Nevada, and the California thrasher in Pinnacles, NM [!]. The second Swainson's thrush song can be found on the CD collection Bird Songs of California produced by the Cornell Laboratory of Ornithology. I slowed both Swainson's thrush songs using Bias Peak.

Series 1
Vocal Range
Importance of Song
Avoiding Monotony
Learning Song
Hip Hop Mimicry
Hummingbird Complexity
Syrinx Anatomy
Internal Duets (Cardinal)
Internal Duets (Cowbird)
Internal Duets (Thrushes)
Syrinx & Pan Pipes

Series 2
Songs & Calls
Call Repertoires
Alarm Calls
Mobbing Calls
Call Notes
Cross-Species Alarms
Lungs & Air Sacs
Circular Breathing