Red Crossbill (Ponderosa Pine or type 2) - Daniel Errichetti
Segnala

Collaboratore

Data

Località

Lantern Hill--Narragansett Trail
New London, Connecticut, United States
Contenuti multimediali da questa località Checklist illustrata
Mappa
Mappa Coordinate: 41.4654168, -71.9469525
Età
Non specificato
Sesso
Non specificato

Dettagli dell'osservazione

Rare in CT. One called among the rest, which I presume to be type 12. Lower choowp-choowp call that is entirely descending. Call notes below 4.5kHz and over 0.04 sec. I think the spectrogram fits the 'kinked' (down-up-down) call variation of this type, which apparently is rarer for the East as the 'unkinked' (entirely descending) variation is the more commonly encountered.

Informazioni tecniche

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