kHz
Beitragende/r
Arthur A. Allen Medien dieser/s Beitragenden
David G. Allen Medien dieser/s Beitragenden
Datum
Ort
Howland's Island Refuge; Lower Pond
New York, United States
Medien von diesem Ort Illustrierte Checkliste- Alter
- nicht spezifiziert
- Geschlecht
- nicht spezifiziert
- Verhalten
- Balz, Balzverhalten oder Paarung
- Tonaufnahmen
- Ruf
- Klangattrappe
- nicht spezifiziert
Kommentare
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.
Technische Angaben
- Aufnahmegerät
- MAGNEMITE UNSPECIFIED MODEL
- Mikrofon
- Western Electric 633A
- Zubehör
- Parabola 101.6cm (40in)
Archivierungsinformationen
- digitalisiert
- 30 Apr 2002 - Shelagh A. Smith