kHz
Contribuidor
Arthur A. Allen Mídias deste contribuidor
David G. Allen Mídias deste contribuidor
Data
Local
Howland's Island Refuge; Lower Pond
New York, United States
Mídias desta localidade Lista Ilustrada- Idade
- Não especificado
- Sexo
- Não especificado
- Comportamentos
- Corte, display ou cópula
- Sons
- Chamado
- Playback
- Não especificado
Comentários
NOTES: A GROUP OF 5-6 CANVASBACKS COURTING AMONG THE LARGE FLOCK OF AYTHYA AMERICANA, ANAS STREPERA, ANAS ACUTA, ANAS CLYPEATA, ETC. ON THE SMALL LOWER POND. WHEN THE MALE CALLED HE OPENED HIS BILL SLIGHTLY AND GAVE A SINGLE 'CUCK'. WHEN HE THREW HIS HEAD BACK TO HIT HIS BACK AND THEN CAME FORWARD AGAIN, HE GAVE THE SOMEWHAT LOUDER 'CUCK-COO' AS A SWELLING THE SIZE OF A MARBLE FORMED BENEATH HIS BILL. THE FEMALE DID NOT OPEN THEIR BILLS BUT I THINK THE ACCOMPANYING CHATTER WAS MADE BY THEM. P.P. KEL. Number of individuals=AU5-6;. Other Behaviors: Court, Perform Visual Display. Habitat: Pond.
Informação técnica
- Gravador
- MAGNEMITE UNSPECIFIED MODEL
- Microfone
- Western Electric 633A
- Acessórios
- Parabola 101.6cm (40in)
Informação de arquivamento
- Digitalizado
- 30 Apr 2002 - Shelagh A. Smith