kHz
Colaborador
Walter A. Thurber Média deste colaborador
Data
08:00
Localização
Hacienda Los Pinos
Usulután, El Salvador
Média deste local Lista Ilustrada- Idade e sexo
- Juvenil, Sexo desconhecido - 1
- Comportamentos
- Corte, exibição ou cópula
- Sons
- Chamamento
- Playback
- Não especificado
Notas sobre o média
NOTES: WELL-FED, AGGRESSIVE NESTLING AT BASE OF TREE WHERE NEST FALLEN. WHEN BIRD WAS APPROACHED IT ABANDONED ITS CONCEALMENT POSE AND ADOPTED A THREAT POSTURE - MOUTH OPEN, WINGS SPREAD, CROWN ERECT. IT BEGAN TO SCREAM WHEN I REACHED OUT MY HAND A RASPY SCREAM USUALLY, BUT NOT ALWAYS, PRECEEDED BY A WHISTLE. THE SCREAM WAS PRODUCED DURING EXHALATION; THE WHISTLE MAY HAVE BEEN INHALATION. THIS SCREAM-WHISTLE VOCALIZATION IS HEARD UNDER OTHER CONDITIONS WHEN THERE IS NO THREAT OR FRIGHT BNA: These "screams" probably represent renditions of the "eee-grack" call (sensu BNA) given by a nestling in response to a perceived threat. [CAM - 23 February 2005]. Other Behaviors: Perform Visual Display, Emit Alarm. Habitat: River.
Informação técnica
- Gravador
- UHER 4000L
- Microfone
- Acessórios
- Parabola 45.7cm (18in)
Informação de arquivo
- Digitalizado
- 6 May 2002 - Shelagh A. Smith