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Bidragsyter

Robert C. Stein Media from this contributor
Robert B. Angstadt Media from this contributor

Dato

Lokalitet

TULE LAKE NAT. WILDLIFE REFUGE; LOWER LAKE
California, United States
Media from this location Illustrert sjekkliste
Alder
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Kjønn
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Lyder
Lokkelyd
Lydavspilling
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Kommentarer

NOTES: Cover density: OPEN; ANNOUNCED COMPARISON BETWEEN MALLARD AND REDHEAD QUACKS. FEMALE(S) [I cannot make sense of announced comparison of the "quacking" calls here, all of which sound much like a Mallard to me. There are a few whistles that are from Redhead, but I cannot be sure that any of the quacks are? These calls sound much like those in LNS #59598 but very different from those in LNS #3527. CAM - 2 November 2004].

Teknisk informasjon

Opptaker
NAGRA III-B
Mikrofon
AKG Unspecified
Tilbehør
Parabola 101.6cm (40in)

Arkivinformasjon

Digitalisert
29 Apr 2002 - Shelagh A. Smith