kHz
Участник
Arthur A. Allen Media from this contributor
David G. Allen Media from this contributor
Дата
Местоположение
Howland's Island Refuge; Lower Pond
New York, United States
Media from this location Иллюстрированный Список Видов- Возраст
- Не указано
- Пол
- Не указано
- Поведение
- Courtship, display, or copulation
- Голоса
- Позыв
- Воспроизведение
- Не указано
Примечания
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.
Техническая информация
- Видеокамера
- MAGNEMITE UNSPECIFIED MODEL
- Микрофон
- Western Electric 633A
- Вспомогательная аппаратура
- Parabola 101.6cm (40in)
Архивная информация
- Оцифровано
- 30 Apr 2002 - Shelagh A. Smith