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

作者

日期

eBird记录 S286349610

地点

Lantern Hill--Narragansett Trail
New London, Connecticut, United States
该地点产生的媒体文件 配图名录
地图
地图 坐标: 41.4654168, -71.9469525
年龄
未说明
性别
未说明

观察细节

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.

技术信息

原始文件大小
42.43 KB