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提供者

Robert B. Angstadt 來自這個貢獻者的影音

日期

地點

TULE LAKE NAT. WILDLIFE REFUGE; LOWER LAKE
California, United States
來自這個地點的影音 影音名錄
年齡
未確定
性別
未確定
聲音
叫聲
回播
未確定

影音備註

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].

技術資訊

錄音機
NAGRA III-B
麥克風
AKG Unspecified
配件
Parabola 101.6cm (40in)

檔案資訊

已數化的
29 Apr 2002 - Shelagh A. Smith