Program Information — Series 3 & 4
Click on a program in the right-hand column to see a description and program notes.

Regional Dialects

In the previous program, we explored small local song dialects that became established in patches of chaparral habitat growing back after a forest fire. Larger regional song dialects can arise when populations of birds are isolated by distance or geological barriers.

In this program, we listen to white-crowned sparrow dialects recorded by Chris Tenney: two from central coastal regions and one from the Sierra Nevadas, slowing down the songs to hear the dialects better.

Chris Tenney recorded the white crowned sparrows at Big Sur, Pebble Beach, and in the Sierra Nevadas. The Marin headlands post-wildfire white-crowned sparrow dialects are from CD accompanying Donald Kroodsma's book The Singing Life of Birds

I slowed down the songs using Bias Peak.

Series 3
Egg Calls
Chick ID Calls
Chicken Calls
Vocal Tract
Syrinx Styles
Airway Model
Airway Overtones
Coiled Trachea
Beak & Airway
Vowels & Airway
Tuvan Throat Singing

Series 4
Size & Sound
Forest Soundscape
Grassland Soundscape
Bird Hearing
Local Dialects
Regional Dialects
Drumming - Woodpeckers Etc.
Bird Tongues
Bird Brains & Singing
Song Duels?
Dawn Chorus
Finale: Song Sparrow