A Veery’s Two Voices

A Veery’s Two Voices

The Veery is a polyphonic singer; it sings simultaneously with both sides of its syrinx. The bird literally has two voices, one from each of its lungs, and it can control them separately. A single Veery sings a duet — and when you slow the song down, you can hear the bird actually harmonize with itself.

A Dove Detective Story

A Dove Detective Story

It’s difficult to take your camera to a local park and capture a bird plumage or behavior that has never before been photographed. But it’s about twenty times easier to make an audio recording of a call or behavior that has never before been audio recorded. And finding out what kind of sound you’ve recorded takes real detective work.

My Sounds on the Radio

My Sounds on the Radio

My friend Jason Beason appeared today on Colorado Public Radio, reporting on the recent breakthrough in Black Swift research. The producer used my recording of Black Swifts at the beginning of the segment.

Identifying Black-capped Gnatcatchers

Identifying Black-capped Gnatcatchers

Separating Black-capped Gnatcatchers from the more numerous Blue-gray Gnatcatchers can be a real challenge. Voice is a key field mark, but good descriptions and recordings of Black-capped Gnatcatcher vocalizations have until recently been in short supply. We’ll try to alleviate some of the confusion today.

The Gargling Chickadees

The Gargling Chickadees

All chickadee species give “chick-a-dee” calls, but only three of them — Black-capped, Carolina, and Mountain — have whistled songs. An often-overlooked chickadee vocalization called the gargle may actually fulfill more of the traditional “song” functions than the whistled songs.