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      1. California Wild Fall 2001 - Feathered Gems

        Consider the “dive-pop” sound of the Anna's hummingbird. As Baptista explains,
        dogma had it that this sound was created by air rushing through the feathers ...
        researcharchive.calacademy.org/calwild/2001fall/.../hummers.html - Cached - Similar

      2. The Source of the Dive-Noise of the Anna's Hummingbird

        Condor, 81:87-89. 0 The Cooper Ornithological Society 1979. THE SOURCE OF
        THE DIVE-NOISE. OF THE ANNA'S HUMMINGRIRD. LUIS F. BAPTISTA. AND ...
        elibrary.unm.edu/sora/Condor/files/issues/v081n01/p0087-p0089.pdf - Cached - Similar

      3. Why do Calypte hummingbirds "sing" with both their tail and their ...

        The song and dive-sound sound similar, and both were assumed to be produced
        ... The Anna's hummingbird (Calypte anna), sister to the Costa's, also sings a
        vocal song ... Shirley Wells, Richard A Bradley, Luis F Baptista in The Auk (1978) ...
        www.mendeley.com/.../calypte-hummingbirds-sing-both-tail-syrinx-apparent -example-sexual-sensory-bias/ - Cached - Similar

      4. Hummingbird Mysteries: How They Make That Dive Noise. Category ...

        Feb 12, 2008 ... The exact nature of the Dive Noise, or dive chirp, has been much debated among
        ornithologists. The late Luis Baptista, former curator of birds ...
        www.berkeleydailyplanet.com/issue/.../29227?...Dive-Noise... - Cached - Similar

      5. Displays and Morphology of an Anna× Allen Hummingbird Hybrid

        Wells and Baptista * HUMMINGBIRD HYBRID. 525 in S. sasin is .... (A) Sound at
        the bottom of the nuptial dive of Selasphorus sasin; (B) of Anna x. Allen hybrid ...
        www.jstor.org/stable/4161268 - Similar

      6. News and Notes

        Baptista and Matsui concluded that it is vocal ... nally, Stiles said that no vocal
        sound from Anna's or any ... porting in 2008 the most extensive study of the dive ...
        aba.org/birding/v40n5p30.pdf - Cached - Similar

      7. The Anna's hummingbird chirps with its tail: a new mechanism of ...

        Apr 22, 2008 ... The loudest noise is called element Cdive (Baptista & Matsui 1979) and ... They
        concluded that the dive sounds of the Anna's hummingbird are ...
        rspb.royalsocietypublishing.org/content/275/1637/955.full - Similar

      8. The Hummingbird Chirps - WSU Clark County Extension

        The mechanics of how the sounds are created hasn't received much attention
        until recently. ... A 1979 article by the late songbird expert Luis Baptista of the
        California Academy ... They observed the male Anna's hummingbirds (Calypte
        anna), using a ... vanes of the outer feathers trimmed, were unable to make dive
        sounds.
        clark.wsu.edu/volunteer/mg/gm_tips/Hummingbird.html - Cached - Similar

      9. 1.30.2008 - Anna's hummingbird chirps with its tail

        Jan 30, 2008 ... A male Anna's hummingbird caught during a display dive, compiled from ... (
        Photo, audio and video by Christopher J. Clark and Teresa Feo/UC Berkeley) ...
        songbird expert Luis Baptista of the California Academy of Sciences, ...
        berkeley.edu/news/media/releases/2008/01/30_hummingbird.shtml - Cached - Similar

      10. naturerecordists : Message: Re: Mystery Sound - Anna's ...

        by the late Luis Baptista suggests that the "ping" or "pop" sound is ...
        spectrograms of dive-pops of the related Anna's hummingbird and found ...
        tech.groups.yahoo.com/group/naturerecordists/message/21495 - Cached - Similar