Alarm call

© Lance A. M. Benner
(source)

Recorded at Hoge Venen, Liége in Belgium.

© Peter Boesman
(source)

Recorded at Lescar, Pyrénées-Atlantiques, Aquitaine in France.

© Bernard Bousquet
(source)

Recorded at Mława (near Mlawa), Mława County, Masovian Voivodeship in Poland.

© Piotr Szczypinski
(source)

bird in captivity in Czech Republic

© Petr Suvorov
(source)

Duetting great horned owls in a canyon with a small creek. The owls were calling from a south-facing slope above the creek.

© Lance A. M. Benner
(source)

Recorded at Rustler Park, Chiricahua Mountains, Cochise County, Arizona in United States.

© Lance A. M. Benner
(source)

This is the "primary" song

© Ted Floyd
(source)

Recorded at Banna Park, Ishigaki-jima in Japan.

© Peter Boesman
(source)

Recorded at Orlando Wetlands, Christmas, Orange County, Florida in United States.

© Paul Marvin
(source)