Listening for the Ivory-bill

Listening for the Ivory-bill

 

The Technology Behind the Recordings

Bioacoustics technology aids ivory-bill search

The Double Knock on Wood

BAM-bam recordings suggest the presence of ivory-bills

"Kent"-Like Calls from the Big Woods

 

The "Kent" Call

Listen for the ivory-bill’s distinctive nasal tooting call

Ivory-billed Woodpecker Calls, 1935

 

White-breasted Nuthatch Calls

 

“Kent”-Like calls from Blue Jays

 

What Do the Experts Think?

August 24, 2005

The Blue Jay Challenge

 

Double Knocks from the Big Woods of Arkansas

Knock, knock, who’s there? December 25, 2004

Three double knocks, two birds?

 

Campephilus Woodpeckers

 

Pileated Woodpecker tapping twice

 

Double Gunshots

 

White-breasted Nuthatch

 

Gunshots from Pearl River, Louisiana, 2002

 

Pileated Woodpecker

 

Ivory-billed Woodpecker - 1935

 

Ivory-bill from 1935 - Distant

 

INV-"Kent"-like Calls, January 17, 2005

 

INV-"Kent"-like Calls, January 21, 2005

 

"Kent"-Like Calls, January 29, 2005

 

"Kent"-Like Calls, January 31, 2005

 

Blue Jay "Kent"-Like Calls, New Jersey

 

Blue Jay "Tooting" Calls, Arkansas

 

Ivory-billed Woodpecker - Distant

 

Ivory-billed Woodpecker Call

Calls recorded in 1935 near a pair of Ivory-billed Woodpeckers at a nest cavity.

Double Knocks from the Big Woods of Arkansas

 

Pale-billed Woodpecker

 

Powerful Woodpecker

 

Pileated Woodpecker

 

INV-Gunshots - Arkansas - 901a

 

Double Knocks from Arkansas--Feb. 5, 2005

 

Double Knocks from Arkansas--Dec. 25, 2004

 

Double Knocks from Arkansas--Jan. 24, 2005

 

"Kent"-Like Calls from the Big Woods

January 29, 2005

"Kent"-Like Calls from the Big Woods

January 31, 2005

Double Knocks from the Big Woods of Arkansas

Three Double Knocks, February 5, 2005

Double Knocks from the Big Woods of Arkansas

Three Double Knocks, February 5, 2005